Genus ( / ˈ dʒ iː n ə s / ; pl. : genera / ˈ dʒ ɛ n ər ə / ) is a taxonomic rank above species and below family as used in the biological classification of living and fossil organisms as well as viruses . In binomial nomenclature , the genus name forms the first part of the binomial species name for each species within the genus.
115-530: See species section Adansonia is a genus made up of eight species of medium-to-large deciduous trees known as baobabs ( / ˈ b aʊ b æ b / or / ˈ b eɪ oʊ b æ b / ) or adansonias . They are placed in the Malvaceae family, subfamily Bombacoideae . They are native to Madagascar , mainland Africa, and Australia. The trees have also been introduced to other regions such as Asia. A genomic and ecological analysis has suggested that
230-521: A Somali sultan, Abu Bakr ibn Shaikh 'Umar. He noted that Sultan Abu Bakr had dark skin complexion and spoke in his native tongue (Somali), but was also fluent in Arabic. The Sultan also had a retinue of wazirs (ministers), legal experts, commanders, royal eunuchs , and other officials at his beck and call. Ibn Battuta continued by ship south to the Swahili coast , a region then known in Arabic as
345-557: A species : see Botanical name and Specific name (zoology) . The rules for the scientific names of organisms are laid down in the nomenclature codes , which allow each species a single unique name that, for animals (including protists ), plants (also including algae and fungi ) and prokaryotes ( bacteria and archaea ), is Latin and binomial in form; this contrasts with common or vernacular names , which are non-standardized, can be non-unique, and typically also vary by country and language of usage. Except for viruses ,
460-458: A central tube (staminal tube) made up of fused stalks of stamens (filaments), with unfused filaments above. A densely hairy ovary is enclosed in the staminal tube, and a long style tipped with a stigma emerges from the filaments. Petals are set near the base of the staminal tube and are variable in shape and colour. The flowers, when fresh, may be white, cream, bright yellow or dark red, but fade quickly, often turning reddish when dried. The fruit of
575-401: A chief judge and married into the royal family of Omar I . Ibn Battuta took on his duties as a judge with keenness and strived to transform local practices to conform to a stricter application of Muslim law. He commanded that men who did not attend Friday prayer be publicly whipped, and that robbers' right hand be cut off. He forbade women from being topless in public, which had previously been
690-468: A feature of most Anatolian towns in the 13th and 14th centuries. The members were young artisans and had at their head a leader with the title of Akhil . The associations specialised in welcoming travellers. Ibn Battuta was very impressed with the hospitality that he received and would later stay in their hospices in more than 25 towns in Anatolia. From Antalya Ibn Battuta headed inland to Eğirdir which
805-578: A few individuals of A. digitata . The Panke baobab in Zimbabwe was some 2,450 years old when it died in 2011, making it the oldest angiosperm ever documented, and two other trees— Dorslandboom in Namibia and Glencoe in South Africa—were estimated to be approximately 2,000 years old. Another specimen known as Grootboom was dated and found to be at least 1,275 years old. The Glencoe Baobab ,
920-722: A guest for three days. Ibn Battuta then sailed to a state called Kaylukari in the land of Tawalisi , where he met Urduja , a local princess. Urduja was a brave warrior, and her people were opponents of the Yuan dynasty . She was described as an "idolater", but could write the phrase Bismillah in Islamic calligraphy . The locations of Kaylukari and Tawalisi are disputed. Kaylukari might referred to Po Klong Garai in Champa (now southern Vietnam), and Urduja might be an aristocrat of Champa or Dai Viet . Filipinos widely believe that Kaylukari
1035-667: A large caravan of pilgrims returning to Iraq across the Arabian Peninsula . The group headed north to Medina and then, travelling at night, turned northeast across the Najd plateau to Najaf , on a journey that lasted about two weeks. In Najaf, he visited the mausoleum of Ali , the Fourth Caliph . Then, instead of continuing to Baghdad with the caravan, Ibn Battuta started a six-month detour that took him into Iran . From Najaf, he journeyed to Wasit , then followed
1150-651: A later homonym of a validly published name is a nomen illegitimum or nom. illeg. ; for a full list refer to the International Code of Nomenclature for algae, fungi, and plants and the work cited above by Hawksworth, 2010. In place of the "valid taxon" in zoology, the nearest equivalent in botany is " correct name " or "current name" which can, again, differ or change with alternative taxonomic treatments or new information that results in previously accepted genera being combined or split. Prokaryote and virus codes of nomenclature also exist which serve as
1265-628: A long time and redescribed as new by a range of subsequent workers, or if a range of genera previously considered separate taxa have subsequently been consolidated into one. For example, the World Register of Marine Species presently lists 8 genus-level synonyms for the sperm whale genus Physeter Linnaeus, 1758, and 13 for the bivalve genus Pecten O.F. Müller, 1776. Within the same kingdom, one generic name can apply to one genus only. However, many names have been assigned (usually unintentionally) to two or more different genera. For example,
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#17327765171041380-529: A number of towns in central Anatolia, but not in the order in which he describes. When Ibn Battuta arrived in İznik , it had just been conquered by Orhan , sultan of the Ottoman Beylik . Orhan was away and his wife was in command of the nearby stationed soldiers, Ibn Battuta gave this account of Orhan's wife: "A pious and excellent woman. She treated me honourably, gave me hospitality and sent gifts." Ibn Battuta's account of Orhan: The greatest of
1495-407: A peculiar way. Southern merchants brought various goods and placed them in an open area on the snow in the night, then returned to their tents. Next morning they came to the place again and found their merchandise taken by the mysterious people, but in exchange they found fur-skins which could be used for making valuable coats, jackets, and other winter garments. The trade was done between merchants and
1610-420: A place called "Mul Jawa" (island of Java or Majapahit Java) which was a center of a Hindu empire . The empire spanned 2 months of travel, and ruled over the country of Qaqula and Qamara. He arrived at the walled city named Qaqula/Kakula, and observed that the city had war junks for pirate raiding and collecting tolls and that elephants were employed for various purposes. He met the ruler of Mul Jawa and stayed as
1725-409: A reference for designating currently accepted genus names as opposed to others which may be either reduced to synonymy, or, in the case of prokaryotes, relegated to a status of "names without standing in prokaryotic nomenclature". An available (zoological) or validly published (botanical) name that has been historically applied to a genus but is not regarded as the accepted (current/valid) name for
1840-594: A result of the Mongol invasion in 1220 and subsequent infighting. From there, he journeyed south to Afghanistan , then crossed into India via the mountain passes of the Hindu Kush . In the Rihla , he mentions these mountains and the history of the range in slave trading. He wrote, After this I proceeded to the city of Barwan, in the road to which is a high mountain, covered with snow and exceedingly cold; they call it
1955-609: A specimen of A. digitata in Limpopo Province , South Africa, was considered to be the largest living individual, with a maximum circumference of 47 m (154 ft) and a diameter of about 15.9 m (52 ft). The tree has since split into two parts, so the widest individual trunk may now be that of the Sunland Baobab , or Platland tree, also in South Africa. The diameter of this tree at ground level
2070-547: A swollen base. Mature trees have massive trunks that are bottle-shaped or cylindrical and tapered from bottom to top. The trunk is made of fibrous wood arranged in concentric rings, although rings are not always formed annually and so cannot be used to determine the age of individual trees. Tree diameter fluctuates with rainfall so it is thought that water may be stored in the trunk. Baobab trees have two types of shoots—long, green vegetative ones, and stout, woody reproductive ones. Branches can be massive and spread out horizontally from
2185-427: A taxon; however, the names published in suppressed works are made unavailable via the relevant Opinion dealing with the work in question. In botany, similar concepts exist but with different labels. The botanical equivalent of zoology's "available name" is a validly published name . An invalidly published name is a nomen invalidum or nom. inval. ; a rejected name is a nomen rejiciendum or nom. rej. ;
2300-455: A total of c. 520,000 published names (including synonyms) as at end 2019, increasing at some 2,500 published generic names per year. "Official" registers of taxon names at all ranks, including genera, exist for a few groups only such as viruses and prokaryotes, while for others there are compendia with no "official" standing such as Index Fungorum for fungi, Index Nominum Algarum and AlgaeBase for algae, Index Nominum Genericorum and
2415-455: A variety of offences. His plan to leave on the pretext of taking another hajj was stymied by the Sultan. The opportunity for Battuta to leave Delhi finally arose in 1341 when an embassy arrived from the Yuan dynasty of China asking for permission to rebuild a Himalayan Buddhist temple popular with Chinese pilgrims. Ibn Battuta was given charge of the embassy but en route to the coast at
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#17327765171042530-578: A world traveller. He spent several weeks visiting sites in the area, and then headed inland to Cairo , the capital of the Mamluk Sultanate . After spending about a month in Cairo, he embarked on the first of many detours within the relative safety of Mamluk territory. Of the three usual routes to Mecca, Ibn Battuta chose the least-traveled, which involved a journey up the Nile valley, then east to
2645-502: A young man, he would have studied at a Sunni Maliki school, the dominant form of education in North Africa at that time. Maliki Muslims requested that Ibn Battuta serve as their religious judge, as he was from an area where it was practised. On 2 Rajab 725 AH (14 June 1325 AD), Ibn Battuta set off from his home town at the age of 21 on a hajj (pilgrimage) to Mecca , a journey that would ordinarily take sixteen months. He
2760-483: Is 9.3 m (31 ft) and its circumference at breast height is 34 m (112 ft). Two large baobabs growing in Tsimanampetsotse National Park were also studied using radiocarbon dating. One called Grandmother is made up of three fused trunks of different ages, with the oldest part of the tree an estimated 1,600 years old. The second, "polygamous baobab", has six fused stems, and
2875-702: Is an estimated 1,000 years old. The tree's leaves may be eaten as a leaf vegetable . The white pith in the fruit of the Australian baobab ( A. gregorii ) tastes like sherbet . It has an acidic, tart, citrus flavor. It is a good source of vitamin C , potassium, carbohydrates, and phosphorus. The dried fruit powder of A. digitata , baobab powder, contains about 11% water, 80% carbohydrates (50% fiber), and modest levels of various nutrients, including riboflavin , calcium , magnesium , potassium , iron, and phytosterols , with low levels of protein and fats. Vitamin C content, described as variable in different samples,
2990-612: Is discouraged by both the International Code of Zoological Nomenclature and the International Code of Nomenclature for algae, fungi, and plants , there are some five thousand such names in use in more than one kingdom. For instance, A list of generic homonyms (with their authorities), including both available (validly published) and selected unavailable names, has been compiled by the Interim Register of Marine and Nonmarine Genera (IRMNG). The type genus forms
3105-470: Is doubtful. In all likelihood, he went directly from Ta'izz to the important trading port of Aden , arriving around the beginning of 1329 or 1331. From Aden , Ibn Battuta embarked on a ship heading for Zeila on the coast of Somalia . He then moved on to Cape Guardafui further down the Somali seaboard, spending about a week in each location. Later he would visit Mogadishu , the then pre-eminent city of
3220-623: Is known about Ibn Battuta's life comes from the autobiographical information included in the account of his travels, which records that he was of Berber descent, born into a family of Islamic legal scholars (known as qadis in the Muslim traditions of Morocco ) in Tangier on 24 February 1304, during the reign of the Marinid dynasty . His family belonged to a Berber tribe known as the Lawata . As
3335-636: Is needed to determine if recognition of them as a separate species is warranted. The genus Adansonia is further divided into three sections. Section Adansonia includes only A. digitata . This species has hanging flowers and fruit, set on long flowering stalks. This is the type species for the genus Adansonia . All species of Adansonia except A. digitata are diploid ; A. digitata is tetraploid . Section Brevitubae includes A. grandidieri and A. suarexensis . These are species with flower buds that set on short pedicles and that are approximately twice as long as wide. The other species are all classified within
3450-591: Is not a native of that island. Baobabs were introduced in ancient times to south Asia and during the colonial era to the Caribbean. They are also present in the island nation of Cape Verde . A ninth species was described in 2012 ( Adansonia kilima Pettigrew, et al. ) but is no longer recognized as a distinct species. The African and Australian baobabs are similar in appearance, and the oldest splits within Adansonia are likely no older than 15 million years; thus,
3565-460: Is somewhat arbitrary. Although all species within a genus are supposed to be "similar", there are no objective criteria for grouping species into genera. There is much debate among zoologists about whether enormous, species-rich genera should be maintained, as it is extremely difficult to come up with identification keys or even character sets that distinguish all species. Hence, many taxonomists argue in favor of breaking down large genera. For instance,
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3680-577: Is surrounded with a strong wall, and its founder is said to be one of the great non-Muslim kings, called Tara". Upon his arrival in Sindh , Ibn Battuta mentions the Indian rhinoceros that lived on the banks of the Indus . The Sultan was erratic even by the standards of the time and for six years Ibn Battuta veered between living the high life of a trusted subordinate and falling under suspicion of treason for
3795-474: Is the type species , and the generic name is permanently associated with the type specimen of its type species. Should the specimen turn out to be assignable to another genus, the generic name linked to it becomes a junior synonym and the remaining taxa in the former genus need to be reassessed. In zoological usage, taxonomic names, including those of genera, are classified as "available" or "unavailable". Available names are those published in accordance with
3910-582: The Arabian Desert to Mecca. Ill with diarrhoea, he arrived in the city weak and exhausted for his second hajj . Ibn Battuta remained in Mecca for some time (the Rihla suggests about three years, from September 1327 until autumn 1330). Problems with chronology, however, lead commentators to suggest that he may have left after the 1328 hajj . After the hajj in either 1328 or 1330, he made his way to
4025-512: The Bilad al-Zanj ("Land of the Zanj ") with an overnight stop at the island town of Mombasa . Although relatively small at the time, Mombasa would become important in the following century. After a journey along the coast, Ibn Battuta next arrived in the island town of Kilwa in present-day Tanzania , which had become an important transit centre of the gold trade. He described the city as "one of
4140-513: The Golden Horde realm. He went to the port town of Azov , where he met with the emir of the Khan, then to the large and rich city of Majar . He left Majar to meet with Uzbeg Khan 's travelling court ( Orda ), which was at the time near Mount Beshtau . From there he made a journey to Bolghar , which became the northernmost point he reached, and noted its unusually short nights in summer (by
4255-621: The International Code of Zoological Nomenclature ; the earliest such name for any taxon (for example, a genus) should then be selected as the " valid " (i.e., current or accepted) name for the taxon in question. Consequently, there will be more available names than valid names at any point in time; which names are currently in use depending on the judgement of taxonomists in either combining taxa described under multiple names, or splitting taxa which may bring available names previously treated as synonyms back into use. "Unavailable" names in zoology comprise names that either were not published according to
4370-824: The International Plant Names Index for plants in general, and ferns through angiosperms, respectively, and Nomenclator Zoologicus and the Index to Organism Names for zoological names. Totals for both "all names" and estimates for "accepted names" as held in the Interim Register of Marine and Nonmarine Genera (IRMNG) are broken down further in the publication by Rees et al., 2020 cited above. The accepted names estimates are as follows, broken down by kingdom: The cited ranges of uncertainty arise because IRMNG lists "uncertain" names (not researched therein) in addition to known "accepted" names;
4485-627: The Khyber Pass and Peshawar , or further south. He crossed the Sutlej river near the city of Pakpattan , in modern-day Pakistan, where he paid obeisance at the shrine of Baba Farid , before crossing southwest into Rajput country. From the Rajput kingdom of Sarsatti, Battuta visited Hansi in India, describing it as "among the most beautiful cities, the best constructed and the most populated; it
4600-529: The Kubitzki system 2003. There are eight accepted species of Adansonia . A new species ( Adansonia kilima Pettigrew, et al.), was described in 2012, found in high-elevation sites in eastern and southern Africa. This, however, is no longer recognized as a distinct species but considered a synonym of A. digitata . Some high-elevation trees in Tanzania show different genetics and morphology, but further study
4715-485: The Mappila Muslims, who were also followers of Imam Al-Shafi‘i. At that time Samudra Pasai marked the end of Dar al-Islam , because no territory east of this was ruled by a Muslim. Here he stayed for about two weeks in the wooden walled town as a guest of the sultan, and then the sultan provided him with supplies and sent him on his way on one of his own junks to China. Ibn Battuta first sailed for 21 days to
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4830-767: The Middle East , Asia , and the Iberian Peninsula . Near the end of his life, he dictated an account of his journeys, titled A Gift to Those Who Contemplate the Wonders of Cities and the Marvels of Travelling , but commonly known as The Rihla . Ibn Battuta travelled more than any other explorer in pre-modern history, totalling around 117,000 km (73,000 mi), surpassing Zheng He with about 50,000 km (31,000 mi) and Marco Polo with 24,000 km (15,000 mi). There have been doubts over
4945-482: The Red Sea port of ʿAydhab . Upon approaching the town, however, a local rebellion forced him to turn back. Ibn Battuta returned to Cairo and took a second side trip, this time to Mamluk-controlled Damascus . During his first trip he had encountered a holy man who prophesied that he would only reach Mecca by travelling through Syria . The diversion held an added advantage; because of the holy places that lay along
5060-543: The Sinai Peninsula to Palestine and then travelled north again through some of the towns that he had visited in 1326. From the Syrian port of Latakia , a Genoese ship took him (and his companions) to Alanya on the southern coast of modern-day Turkey. He then journeyed westwards along the coast to the port of Antalya . In the town he met members of one of the semi-religious fityan associations. These were
5175-744: The Strait of Hormuz then on to Mecca for the hajj of 1330 (or 1332). After his third pilgrimage to Mecca, Ibn Battuta decided to seek employment with the Sultan of Delhi , Muhammad bin Tughluq . In the autumn of 1330 (or 1332), he set off for the Seljuk controlled territory of Anatolia to take an overland route to India. He crossed the Red Sea and the Eastern Desert to reach the Nile valley and then headed north to Cairo . From there he crossed
5290-521: The historicity of some of Ibn Battuta's travels, particularly as they reach farther East. "Ibn Battuta" is a patronymic , literally meaning 'son of the duckling'. His most common full name is given as Abu Abdullah Muhammad ibn Battuta. In his travelogue , The Rihla , he gives his full name as " Shams al-Din Abu’Abdallah Muhammad ibn’Abdallah ibn Muhammad ibn Ibrahim ibn Muhammad ibn Yusuf Lawati al- Tanji ibn Battuta". All that
5405-404: The platypus belongs to the genus Ornithorhynchus although George Shaw named it Platypus in 1799 (these two names are thus synonyms ) . However, the name Platypus had already been given to a group of ambrosia beetles by Johann Friedrich Wilhelm Herbst in 1793. A name that means two different things is a homonym . Since beetles and platypuses are both members of the kingdom Animalia,
5520-509: The " Land of the Berbers " (بلد البربر Balad al-Barbar , the medieval Arabic term for the Horn of Africa ). When Ibn Battuta arrived in 1332, Mogadishu stood at the zenith of its prosperity. He described it as "an exceedingly large city" with many rich merchants, noted for its high-quality fabric that was exported to other countries, including Egypt . Battuta added that the city was ruled by
5635-462: The Arabic أَبُو حِبَاب abū ḥibāb meaning "many-seeded fruit". The French explorer and botanist Michel Adanson (1727–1806) observed a baobab tree in 1749 on the island of Sor in Senegal, and wrote the first detailed botanical description of the full tree, accompanied with illustrations. Recognizing the connection to the fruit described by Alpini he called the genus Baobab. Linnaeus later renamed
5750-512: The Australian species represents a long-distance trans- oceanic dispersal event from Africa. The lineage leading to Adansonia was found to have diverged from its closest relatives in Bombacoideae like Ceiba / Chorisia at the end of the Eocene, during a time of abrupt global climate cooling and drying, while a divergence of this Adansonia + Ceiba / Chorisia clade from Pachira
5865-473: The French botanist Joseph Pitton de Tournefort (1656–1708) is considered "the founder of the modern concept of genera". The scientific name (or the scientific epithet) of a genus is also called the generic name ; in modern style guides and science, it is always capitalised. It plays a fundamental role in binomial nomenclature , the system of naming organisms , where it is combined with the scientific name of
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#17327765171045980-646: The Hindu Kush, that is Hindu-slayer, because most of the slaves brought thither from India die on account of the intenseness of the cold. Ibn Battuta and his party reached the Indus River on 12 September 1333. From there, he made his way to Delhi and became acquainted with the sultan, Muhammad bin Tughluq . Muhammad bin Tughluq was renowned as the wealthiest man in the Muslim world at that time. He patronised various scholars, Sufis, qadis , viziers , and other functionaries in order to consolidate his rule. On
6095-482: The Maldives, Ibn Battuta took four wives. In his Travels he wrote that in the Maldives the effect of small dowries and female non-mobility combined to, in effect, make a marriage a convenient temporary arrangement for visiting male travellers and sailors. From the Maldives, he carried on to Sri Lanka and visited Sri Pada and Tenavaram temple . Ibn Battuta's ship almost sank on embarking from Sri Lanka, only for
6210-532: The accounts of his travels to Sultan Öz Beg Khan (r. 1313–1341). Then he continued past the Caspian and Aral Seas to Bukhara and Samarkand , the latter of which he praised as "one of the grandest and finest cities, and the most perfect of them". Here he visited the court of another Mongol khan, Tarmashirin (r. 1331–1334) of the Chagatai Khanate . He also noted the ruined state of the city walls,
6325-453: The axils of the leaves near the tips of reproductive shoots. Only A. digitata has flowers and fruits set on long, hanging stalks. There is usually only a single flower in an axil, but sometimes flowers occur in pairs. They are large, showy and strongly scented. They only open near dusk. Opening is rapid and movement of the flower parts is fast enough to be visible. Most Adansonia species are pollinated by bats. Flowers may remain attached to
6440-652: The banks of the Sharavathi river next to the Arabian Sea . This area is today known as Hosapattana and lies in the Honnavar Taluk of Uttara Kannada . Following the overthrow of the sultanate, Ibn Battuta had no choice but to leave India. Although determined to continue his journey to China, he first took a detour to visit the Maldive Islands where he worked as a judge. He spent nine months on
6555-445: The baobabs is one of their distinguishing features. It is large, oval-to-round, and berry-like in most species (usually less than 10 centimetres (3.9 in) long in A. madagascariensis .). It has a dry, hard outer shell of variable thickness. In most species, the shell is indehiscent (does not break open easily). A. gibbosa is the only species with fruits that crack while still on the tree, which then tend to break open upon landing on
6670-532: The base for a type of ice cream known as gelado de múcua . In Zimbabwe , the fruit of A. digitata is eaten fresh or the crushed crumbly pulp is stirred into porridge and drinks. In Tanzania , the dry pulp of A. digitata is added to sugarcane to aid fermentation in brewing (beermaking). The seeds of some species are a source of vegetable oil . The fruit pulp and seeds of A. grandidieri and A. za are eaten fresh. Some baobab species are sources of fiber , dye , and fuel . Indigenous Australians used
6785-442: The base for higher taxonomic ranks, such as the family name Canidae ("Canids") based on Canis . However, this does not typically ascend more than one or two levels: the order to which dogs and wolves belong is Carnivora ("Carnivores"). The numbers of either accepted, or all published genus names is not known precisely; Rees et al., 2020 estimate that approximately 310,000 accepted names (valid taxa) may exist, out of
6900-406: The base of the flower. The inner surface of the lobes are silky-hairy and cream, pink, or red. Sometimes the lobes do not separate cleanly, distorting the shape of the flower as they bend back. The calyx lobes remain fused at the base, leaving a feature (calyx tube) that has nectar-producing tissue and that is cup-shaped, flat or tubular; the form of the calyx tube varies with species. The flowers have
7015-475: The bonds of life, it weighed sorely upon me to part from them, and both they and I were afflicted with sorrow at this separation. He travelled to Mecca overland, following the North African coast across the sultanates of Abd al-Wadid and Hafsid . The route took him through Tlemcen , Béjaïa , and then Tunis , where he stayed for two months. For safety, Ibn Battuta usually joined a caravan to reduce
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#17327765171047130-594: The boundaries of the Islamic world. Arriving in Constantinople towards the end of 1332 (or 1334), he met the Byzantine emperor Andronikos III Palaiologos. He visited the great church of Hagia Sophia and spoke with an Eastern Orthodox priest about his travels in the city of Jerusalem. After a month in the city, Ibn Battuta returned to Astrakhan, then arrived in the capital city Sarai al-Jadid and reported
7245-747: The capital of the Bornu Empire southwest of Lake Chad in Central Africa . In the novel The Little Prince , the titular character takes care to root out baobabs that try to grow on his tiny planet home. The fearsome, grasping baobab trees, researchers have contended, were meant to represent Nazism attempting to destroy the planet. Genus The composition of a genus is determined by taxonomists . The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including
7360-493: The custom. However, these and other strict judgements began to antagonise the island nation's rulers, and involved him in power struggles and political intrigues. Ibn Battuta resigned from his job as chief qadi , although in all likelihood it was inevitable that he would have been dismissed. Throughout his travels, Ibn Battuta kept close company with women, usually taking a wife whenever he stopped for any length of time at one place, and then divorcing her when he moved on. While in
7475-488: The finest and most beautifully built towns; all the buildings are of wood, and the houses are roofed with dīs reeds". Ibn Battuta recorded his visit to the Kilwa Sultanate in 1330, and commented favourably on the humility and religion of its ruler, Sultan al-Hasan ibn Sulaiman , a descendant of the legendary Ali ibn al-Hassan Shirazi . He further wrote that the authority of the Sultan extended from Malindi in
7590-446: The form "author, year" in zoology, and "standard abbreviated author name" in botany. Thus in the examples above, the genus Canis would be cited in full as " Canis Linnaeus, 1758" (zoological usage), while Hibiscus , also first established by Linnaeus but in 1753, is simply " Hibiscus L." (botanical usage). Each genus should have a designated type , although in practice there is a backlog of older names without one. In zoology, this
7705-737: The generic name (or its abbreviated form) still forms the leading portion of the scientific name, for example, Canis lupus lupus for the Eurasian wolf subspecies, or as a botanical example, Hibiscus arnottianus ssp. immaculatus . Also, as visible in the above examples, the Latinised portions of the scientific names of genera and their included species (and infraspecies, where applicable) are, by convention, written in italics . The scientific names of virus species are descriptive, not binomial in form, and may or may not incorporate an indication of their containing genus; for example,
7820-542: The genus Adansonia , to honour Adanson, but use of baobab as one of the common names has persisted. The genus Adansonia is in the subfamily Bombacoideae , within the family Malvaceae in the order Malvales . The subfamily Bombacoideae was previously treated as the Bombacaceae family but it is no longer recognized at the rank of family by the Angiosperm Phylogeny Group I 1998, II 2003 or
7935-459: The genus is Madagascan in origin. The generic name honours Michel Adanson , the French naturalist and explorer who described Adansonia digitata . The baobab is also known as the "upside down tree", a name that originates from several myths. They are among the most long-lived of vascular plants and have large flowers that are reproductive for a maximum of 15 hours. The flowers open around dusk, opening so quickly that movement can be detected by
8050-567: The ground. Inside the outer shell, kidney-shaped seeds 10–15(−20) mm long are set in a dry pulp. The earliest written reports of baobab are from a 14th-century travelogue by the Arab traveler Ibn Battuta . The first botanical description was in the De medicina Aegyptiorum by Prospero Alpini (1592), looking at fruits that he observed in Egypt from an unknown source. They were called Bahobab , possibly from
8165-432: The idea that a newly defined genus should fulfill these three criteria to be descriptively useful: Moreover, genera should be composed of phylogenetic units of the same kind as other (analogous) genera. The term "genus" comes from Latin genus , a noun form cognate with gignere ('to bear; to give birth to'). The Swedish taxonomist Carl Linnaeus popularized its use in his 1753 Species Plantarum , but
8280-513: The islands, much longer than he had intended. When he arrived at the capital, Malé , Ibn Battuta did not plan to stay. However, the leaders of the formerly Buddhist nation that had recently converted to Islam were looking for a chief judge, someone who knew Arabic and the Qur'an. To convince him to stay they gave him pearls, gold jewellery, and slaves, while at the same time making it impossible for him to leave by ship. Compelled into staying, he became
8395-541: The kings of the Turkmens and the richest in wealth, lands and military forces. Of fortresses, he possesses nearly a hundred, and for most of his time, he is continually engaged in making a round of them, staying in each fortress for some days to put it in good order and examine its condition. It is said that he has never stayed for a whole month in any one town. He also fights with the infidels continually and keeps them under siege. Ibn Battuta had also visited Bursa which at
8510-633: The largest component, with 23,236 ± 5,379 accepted genus names, of which 20,845 ± 4,494 are angiosperms (superclass Angiospermae). By comparison, the 2018 annual edition of the Catalogue of Life (estimated >90% complete, for extant species in the main) contains currently 175,363 "accepted" genus names for 1,744,204 living and 59,284 extinct species, also including genus names only (no species) for some groups. The number of species in genera varies considerably among taxonomic groups. For instance, among (non-avian) reptiles , which have about 1180 genera,
8625-425: The largest ones in the middle and may be stalkless or with short petioles . Leaflets may have toothed or smooth edges, and may be hairless or have simple-to-clumped hairs. Baobabs have stipules at the base of the leaves, but the stipules are soon shed in most species. Baobabs are deciduous, shedding leaves during the dry season. In most Adansonia species, the flowers are borne on short erect or spreading stalks in
8740-698: The last Mongol ruler of the unified Ilkhanate, leaving the city and heading north with a large retinue. Ibn Battuta joined the royal caravan for a while, then turned north on the Silk Road to Tabriz , the first major city in the region to open its gates to the Mongols and by then an important trading centre as most of its nearby rivals had been razed by the Mongol invaders. Ibn Battuta left again for Baghdad, probably in July, but first took an excursion northwards along
8855-443: The lizard genus Anolis has been suggested to be broken down into 8 or so different genera which would bring its ~400 species to smaller, more manageable subsets. Ibn Battuta Ibn Battuta ( / ˌ ɪ b ən b æ t ˈ t uː t ɑː / ; 24 February 1304 – 1368/1369), was a Maghrebi traveller, explorer and scholar. Over a period of thirty years from 1325 to 1354, Ibn Battuta visited much of Africa ,
8970-796: The meeting in 1345 CE, Ibn Battuta noted that Shah Jalal was tall and lean, fair in complexion and lived by the mosque in a cave, where his only item of value was a goat he kept for milk, butter, and yogurt. He observed that the companions of the Shah Jalal were foreign and known for their strength and bravery. He also mentions that many people would visit the Shah to seek guidance. Ibn Battuta went further north into Assam , then turned around and continued with his original plan. In 1345, Ibn Battuta travelled to Samudra Pasai Sultanate (called "al-Jawa") in present-day Aceh , Northern Sumatra , after 40 days voyage from Sunur Kawan. He notes in his travel log that
9085-403: The most (>300) have only 1 species, ~360 have between 2 and 4 species, 260 have 5–10 species, ~200 have 11–50 species, and only 27 genera have more than 50 species. However, some insect genera such as the bee genera Lasioglossum and Andrena have over 1000 species each. The largest flowering plant genus, Astragalus , contains over 3,000 species. Which species are assigned to a genus
9200-494: The mysterious people without seeing each other. As Ibn Battuta was not a merchant and saw no benefit of going there he abandoned the travel to this land of darkness. When they reached Astrakhan, Öz Beg Khan had just given permission for one of his pregnant wives, Princess Bayalun, a daughter of Byzantine emperor Andronikos III Palaiologos , to return to her home city of Constantinople to give birth. Ibn Battuta talked his way into this expedition, which would be his first beyond
9315-625: The naked eye, and are faded by the next morning. The fruits are large, oval to round and berry-like and hold kidney-shaped seeds in a dry, pulpy matrix. In the early 21st century, baobabs in southern Africa began to die off rapidly from a cause yet to be determined. It is unlikely that disease or pests would be able to kill many trees so rapidly, and some have speculated that the die-off is a result of dehydration . Baobabs are long-lived deciduous, small to large trees from 5 to 30 m (20 to 100 ft) tall with broad trunks and compact crowns. Young trees usually have slender, tapering trunks, often with
9430-428: The name could not be used for both. Johann Friedrich Blumenbach published the replacement name Ornithorhynchus in 1800. However, a genus in one kingdom is allowed to bear a scientific name that is in use as a generic name (or the name of a taxon in another rank) in a kingdom that is governed by a different nomenclature code. Names with the same form but applying to different taxa are called "homonyms". Although this
9545-428: The native species A. gregorii for several products, making string from the root fibers and decorative crafts from the fruits. Baobab oil from the seed is also used in cosmetics, particularly in moisturizers . Baobab trees hold cultural and spiritual significance in many African societies. They are often the sites of communal gatherings, storytelling, and rituals. An unusual baobab was the namesake of Kukawa , formerly
9660-584: The north to Inhambane in the south and was particularly impressed by the planning of the city, believing it to be the reason for Kilwa's success along the coast. During this period, he described the construction of the Palace of Husuni Kubwa and a significant extension to the Great Mosque of Kilwa , which was made of coral stones and was the largest mosque of its kind. With a change in the monsoon winds, Ibn Battuta sailed back to Arabia, first to Oman and
9775-400: The oldest and largest baobabs began to die in the early 21st century, likely from a combination of drought and rising temperatures. The trees appear to become parched , then become dehydrated and unable to support their massive trunks. Baobabs are important as nest sites for birds, in particular the mottled spinetail and four species of weaver . Radiocarbon dating has provided data on
9890-470: The port of Chittagong in modern-day Bangladesh intending to travel to Sylhet to meet Shah Jalal , who became so renowned that Ibn Battuta, then in Chittagong, made a one-month journey through the mountains of Kamaru near Sylhet to meet him. On his way to Sylhet, Ibn Battuta was greeted by several of Shah Jalal's disciples who had come to assist him on his journey many days before he had arrived. At
10005-657: The port of Jeddah on the Red Sea coast. From there he followed the coast in a series of boats (known as a jalbah, these were small craft made of wooden planks sewn together, lacking an established phrase) making slow progress against the prevailing south-easterly winds. Once in Yemen he visited Zabīd and later the highland town of Ta'izz , where he met the Rasulid dynasty king ( Malik ) Mujahid Nur al-Din Ali. Ibn Battuta also mentions visiting Sana'a , but whether he actually did so
10120-541: The provisions of the ICZN Code, e.g., incorrect original or subsequent spellings, names published only in a thesis, and generic names published after 1930 with no type species indicated. According to "Glossary" section of the zoological Code, suppressed names (per published "Opinions" of the International Commission of Zoological Nomenclature) remain available but cannot be used as the valid name for
10235-412: The regions of Darfur and the state of Kordofan . The locals call it "Gongolaze" and use its fruits as food and medicine and use the tree trunks as reservoirs to save water. Baobabs store water in the trunk (up to 120,000 litres or 32,000 US gallons) to endure harsh drought conditions. All occur in seasonally arid areas, and are deciduous , shedding their leaves during the dry season. Across Africa,
10350-546: The risk of being robbed. He took a bride in the town of Sfax , but soon left her due to a dispute with the father. That was the first in a series of marriages that would feature in his travels. In the early spring of 1326, after a journey of over 3,500 km (2,200 mi), Ibn Battuta arrived at the port of Alexandria , at the time part of the Bahri Mamluk empire . He met two ascetic pious men in Alexandria. One
10465-657: The river Tigris south to Basra . His next destination was the town of Isfahan across the Zagros Mountains in Iran. He then headed south to Shiraz , a large, flourishing city spared the destruction wrought by Mongol invaders on many more northerly towns. Finally, he returned across the mountains to Baghdad, arriving there in June 1327. Parts of the city were still ruined from the damage inflicted by Hulagu Khan 's invading army in 1258. In Baghdad, he found Abu Sa'id ,
10580-533: The river Tigris. He visited Mosul , where he was the guest of the Ilkhanate governor, and then the towns of Cizre (Jazirat ibn 'Umar) and Mardin in modern-day Turkey. At a hermitage on a mountain near Sinjar , he met a Kurdish mystic who gave him some silver coins. Once back in Mosul, he joined a "feeder" caravan of pilgrims heading south to Baghdad, where they would meet up with the main caravan that crossed
10695-459: The ruler of Samudra Pasai was a pious Muslim named Sultan Al-Malik Al-Zahir Jamal-ad-Din, who performed his religious duties with utmost zeal and often waged campaigns against animists in the region. The island of Sumatra , according to Ibn Battuta, was rich in camphor , areca nut , cloves , and tin . The madh'hab he observed was Imam Al-Shafi‘i , whose customs were similar to those he had previously seen in coastal India , especially among
10810-485: The section Longitubae. They also have flowers/fruits set on short pedicels, but the flower buds are five or more times as long as wide. As of July 2020, there are eight recognized species of Adansonia, with six endemic to Madagascar , one native to mainland Africa and the Arabian Peninsula, and one native to Australia. The mainland African species ( Adansonia digitata ) also occurs on Madagascar, but it
10925-497: The specific name particular to the wolf. A botanical example would be Hibiscus arnottianus , a particular species of the genus Hibiscus native to Hawaii. The specific name is written in lower-case and may be followed by subspecies names in zoology or a variety of infraspecific names in botany . When the generic name is already known from context, it may be shortened to its initial letter, for example, C. lupus in place of Canis lupus . Where species are further subdivided,
11040-412: The standard format for a species name comprises the generic name, indicating the genus to which the species belongs, followed by the specific epithet, which (within that genus) is unique to the species. For example, the gray wolf 's scientific name is Canis lupus , with Canis ( Latin for 'dog') being the generic name shared by the wolf's close relatives and lupus (Latin for 'wolf') being
11155-481: The standards of the subtropics). Then he returned to the Khan's court and with it moved to Astrakhan . Ibn Battuta recorded that while in Bolghar he wanted to travel further north into the land of darkness. The land is snow-covered throughout ( northern Siberia ) and the only means of transport is dog-drawn sled. There lived a mysterious people who were reluctant to show themselves. They traded with southern people in
11270-589: The start of the journey to China, he and his large retinue were attacked by a group of bandits . Separated from his companions, he was robbed, kidnapped, and nearly lost his life. Despite this setback, within ten days he had caught up with his group and continued on to Khambhat in the Indian state of Gujarat . From there, they sailed to Calicut (now known as Kozhikode), where Portuguese explorer Vasco da Gama would land two centuries later. While in Calicut, Battuta
11385-487: The strength of his years of study in Mecca, Ibn Battuta was appointed a qadi (judge) by the sultan. However, he found it difficult to enforce Islamic law beyond the sultan's court in Delhi , due to lack of Islamic appeal in India. It is uncertain by which route Ibn Battuta entered the Indian subcontinent but it is known that he was kidnapped and robbed by rebels on his journey to the Indian coast. He may have entered via
11500-403: The taxon is termed a synonym ; some authors also include unavailable names in lists of synonyms as well as available names, such as misspellings, names previously published without fulfilling all of the requirements of the relevant nomenclatural code, and rejected or suppressed names. A particular genus name may have zero to many synonyms, the latter case generally if the genus has been known for
11615-590: The time was the capital of the Ottoman Beylik, he described Bursa as "a great and important city with fine bazaars and wide streets, surrounded on all sides with gardens and running springs". He also visited the Beylik of Aydin . Ibn Battuta stated that the ruler of the Beylik of Aydin had twenty Greek slaves at the entrance of his palace and Ibn Battuta was given a Greek slave as a gift. His visit to Anatolia
11730-550: The town, he journeyed on to Mecca while visiting holy sites along the way; upon his arrival to Mecca he completed his first pilgrimage, in November, and he took the honorific status of El-Hajji . Rather than returning home, Ibn Battuta decided to continue travelling, choosing as his next destination the Ilkhanate , a Mongol Khanate , to the northeast. On 17 November 1326, following a month spent in Mecca, Ibn Battuta joined
11845-470: The trees for several days, but the reproductive phase is very short, with pollen shed during the first night and stigmas shriveled by the morning. The flower is made up of an outer 5-lobed calyx, and an inner ring of petals set around a fused tube of stamens. The outer lobes of the calyx are usually green (brown in A. grandidieri ) and in bud are joined almost to the tip. As the flower opens, the calyx lobes split apart and become coiled or bent back (reflexed) at
11960-743: The trunk or are ascending. Adansonia gregorii is generally the smallest of the baobabs, rarely getting to over 10 m (33 ft) tall and often with multiple trunks. Both A. rubrostipa and A. madagascariensis are small to large trees, from 5 to 20 m (16 to 66 ft) tall. The other baobabs grow from 25 to 30 m (80 to 100 ft) tall, with 2 to 3 m (7 to 10 ft) diameter trunks. A. digitata , however, often has massive single or multiple trunks of up to 10 m (33 ft) diameter. Leaves are palmately compound in mature trees, but seedlings and regenerating shoots may have simple leaves. The transition to compound leaves comes with age and may be gradual. Leaves have 5–11 leaflets, with
12075-576: The values quoted are the mean of "accepted" names alone (all "uncertain" names treated as unaccepted) and "accepted + uncertain" names (all "uncertain" names treated as accepted), with the associated range of uncertainty indicating these two extremes. Within Animalia, the largest phylum is Arthropoda , with 151,697 ± 33,160 accepted genus names, of which 114,387 ± 27,654 are insects (class Insecta). Within Plantae, Tracheophyta (vascular plants) make up
12190-529: The vessel that came to his rescue to suffer an attack by pirates. Stranded onshore, he worked his way back to the Madurai kingdom in India. Here he spent some time in the court of the short-lived Madurai Sultanate under Ghiyas-ud-Din Muhammad Damghani, from where he returned to the Maldives and boarded a Chinese junk , still intending to reach China and take up his ambassadorial post. He reached
12305-429: The virus species " Salmonid herpesvirus 1 ", " Salmonid herpesvirus 2 " and " Salmonid herpesvirus 3 " are all within the genus Salmonivirus ; however, the genus to which the species with the formal names " Everglades virus " and " Ross River virus " are assigned is Alphavirus . As with scientific names at other ranks, in all groups other than viruses, names of genera may be cited with their authorities, typically in
12420-575: The way, including Hebron , Jerusalem , and Bethlehem , the Mamluk authorities kept the route safe for pilgrims. Without this help many travellers would be robbed and murdered. After spending the Muslim month of Ramadan , during August, in Damascus, he joined a caravan travelling the 1,300 km (810 mi) south to Medina , site of the Mosque of the Islamic prophet Muhammad . After four days in
12535-516: Was Sheikh Burhanuddin, who is supposed to have foretold the destiny of Ibn Battuta as a world traveller and told him, "It seems to me that you are fond of foreign travel. You must visit my brother Fariduddin in India, Rukonuddin in Sind, and Burhanuddin in China. Convey my greetings to them." Another pious man, Sheikh Murshidi, interpreted the meaning of a dream of Ibn Battuta as being that he was meant to be
12650-516: Was eager to learn more about far-away lands and craved adventure. He would not return to Morocco again for 24 years. I set out alone, having neither fellow-traveler in whose companionship I might find cheer, nor caravan whose part I might join, but swayed by an overmastering impulse within me and a desire long-cherished in my bosom to visit these illustrious sanctuaries. So I braced my resolution to quit my dear ones, female and male, and forsook my home as birds forsake their nests. My parents being yet in
12765-604: Was found to be more ancient, dating to the middle Eocene. The Malagasy species are important components of the Madagascar dry deciduous forests . Within that biome , Adansonia madagascariensis and A. rubrostipa occur specifically in the Anjajavy Forest , sometimes growing out of the tsingy limestone itself. A. digitata has been called "a defining icon of African bushland". The tree also grows wild in Sudan in
12880-512: Was in a range of 74 to 163 milligrams (1.14 to 2.52 gr) per 100 grams (3.5 oz) of dried powder. In 2008, baobab dried fruit pulp was authorized in the EU as a safe food ingredient , and later in the year was granted GRAS ( generally recognized as safe ) status in the United States. In Angola , the dry fruit of A. digitata is usually boiled, and the broth is used for juices or as
12995-582: Was the capital of the Hamidids . He spent Ramadan (June 1331 or May 1333) in the city. From this point his itinerary across Anatolia in the Rihla becomes confused. Ibn Battuta describes travelling westwards from Eğirdir to Milas and then skipping 420 km (260 mi) eastward past Eğirdir to Konya . He then continues travelling in an easterly direction, reaching Erzurum from where he skips 1,160 km (720 mi) back to Birgi which lies north of Milas. Historians believe that Ibn Battuta visited
13110-593: Was the first time in his travels he acquired a servant; the ruler of Aydin gifted him his first slave. Later, he purchased a young Greek girl for 40 dinars in Ephesus , was gifted another slave in İzmir by the Sultan, and purchased a second girl in Balikesir . The conspicuous evidence of his wealth and prestige continued to grow. From Sinope , he took a sea route to the Crimean Peninsula , arriving in
13225-435: Was the guest of the ruling Zamorin . While Ibn Battuta visited a mosque on shore, a storm arose and one of the ships of his expedition sank. The other ship then sailed without him only to be seized by a local Sumatran king a few months later. Afraid to return to Delhi and be seen as a failure, he stayed for a time in southern India under the protection of Jamal-ud-Din, ruler of the small but powerful Nawayath Sultanate on
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