''Engelhardia'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nom ...

of seven species of

tree In botany, a tree is a perennial plant with an elongated stem, or trunk, usually supporting branches and leaves. In some usages, the definition of a tree may be narrower, including only woody plants with secondary growth, plants that are ...

s in the family

Juglandaceae The Juglandaceae are a plant family known as the walnut family. They are trees, or sometimes shrubs, in the order Fagales. Members of this family are native to the Americas, Eurasia, and Southeast Asia. The nine or ten genera in the family have ...

, native to southeast

Asia Asia (, ) is one of the world's most notable geographical regions, which is either considered a continent in its own right or a subcontinent of Eurasia, which shares the continental landmass of Afro-Eurasia with Africa. Asia covers an are ...

from northern

India India, officially the Republic of India (Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the so ...

east to

Taiwan Taiwan, officially the Republic of China (ROC), is a country in East Asia, at the junction of the East and South China Seas in the northwestern Pacific Ocean, with the People's Republic of China (PRC) to the northwest, Japan to the nort ...

Indonesia Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania between the Indian and Pacific oceans. It consists of over 17,000 islands, including Sumatra, Java, Sulawesi, and parts of Borneo and New Guine ...

and the

Philippines The Philippines (; fil, Pilipinas, links=no), officially the Republic of the Philippines ( fil, Republika ng Pilipinas, links=no), * bik, Republika kan Filipinas * ceb, Republika sa Pilipinas * cbk, República de Filipinas * hil, Republ ...

. The genus name is commonly misspelled "''Engelhardtia''", a "correction" made by the original author

Carl Ludwig Blume Charles Ludwig de Blume or Karl Ludwig von Blume (9 June 1796, Braunschweig – 3 February 1862, Leiden) was a German- Dutch botanist. He was born at Braunschweig in Germany, but studied at Leiden University and spent his professional life wor ...

in 1829 and persistent until today, as it was thus entered in the ''

Index Kewensis The 1893 ''Index Kewensis'' (IK), maintained by the Royal Botanic Gardens, Kew, is a publication that aims to register all botanical names for seed plants at the rank of species and genera. It later came to include names of taxonomic families and ...

''; the original spelling is ''Engelhardia''.

Fossil record

''Engelhardia'' pollen has been found in deposits of

Miocene The Miocene ( ) is the first epoch (geology), geological epoch of the Neogene Period and extends from about (Ma). The Miocene was named by Scottish geologist Charles Lyell; the name comes from the Greek words (', "less") and (', "new") and mea ...

Age in

Denmark ) , song = ( en, "King Christian stood by the lofty mast") , song_type = National and royal anthem , image_map = EU-Denmark.svg , map_caption = , subdivision_type = Sovereign state , subdivision_name = Kingdom of Denmark , establish ...

. †''Engelhardia orsbergensis'' leaf fossils have been uncovered from

rhyodacite Rhyodacite is a volcanic rock intermediate in composition between dacite and rhyolite. It is the extrusive equivalent of those plutonic rocks that are intermediate in composition between monzogranite and granodiorite. Rhyodacites form from rap ...

tuff Tuff is a type of rock made of volcanic ash ejected from a vent during a volcanic eruption. Following ejection and deposition, the ash is lithified into a solid rock. Rock that contains greater than 75% ash is considered tuff, while rock ...

of Lower Miocene age in Southern

Slovakia Slovakia (; sk, Slovensko ), officially the Slovak Republic ( sk, Slovenská republika, links=no ), is a landlocked country in Central Europe. It is bordered by Poland to the north, Ukraine to the east, Hungary to the south, Austria to the s ...

near the town of

Lučenec Lučenec (; german: Lizenz; hu, Losonc; yi, לאשאנץ; la, Lutetia HungarorumLelkes György (1992), Magyar helységnév-azonosító szótár, Balassi Kiadó, Budapest, 508 p.) is a town in the Banská Bystrica Region of south-central Slovaki ...

. †''Engelhardia orsbergensis'' and †''Engelhardia macroptera'' fossils have been uncovered from late Miocene strata in

Iceland Iceland ( is, Ísland; ) is a Nordic island country in the North Atlantic Ocean and in the Arctic Ocean. Iceland is the most sparsely populated country in Europe. Iceland's capital and largest city is Reykjavík, which (along with its s ...

Species

*'' Engelhardia apoensis'' Elmer ex Nagel, native to Malaya,

Borneo Borneo (; id, Kalimantan) is the third-largest island in the world and the largest in Asia. At the geographic centre of Maritime Southeast Asia, in relation to major Indonesian islands, it is located north of Java, west of Sulawesi, and ea ...

, the

*'' Engelhardia cathayensis'' Dode *'' Engelhardia hainanensis'' Chen, native to China *'' Engelhardia nudiflora'' Hook. f. *'' Engelhardia rigida'' Blume, native to

Java Java (; id, Jawa, ; jv, ꦗꦮ; su, ) is one of the Greater Sunda Islands in Indonesia. It is bordered by the Indian Ocean to the south and the Java Sea to the north. With a population of 151.6 million people, Java is the world's mos ...

, Borneo,

New Guinea New Guinea (; Hiri Motu: ''Niu Gini''; id, Papua, or , historically ) is the world's second-largest island with an area of . Located in Oceania in the southwestern Pacific Ocean, the island is separated from Australia by the wide Torr ...

, the Philippines *'' Engelhardia roxburghiana'' Wall. (syn. ''E. chrysolepis'' Hance, ''E. fenzelii'' Merr.) ''huang qi'' in Chinese () *'' Engelhardia serrata'' Blume, native to southwest China,

Indochina Mainland Southeast Asia, also known as the Indochinese Peninsula or Indochina, is the continental portion of Southeast Asia. It lies east of the Indian subcontinent and south of Mainland China and is bordered by the Indian Ocean to the west an ...

, and the Philippines **'' Engelhardia serrata'' var. ''cambodica'' W. E. Manning *'' Engelhardia spicata'' Lesch ex Blume, native to

Nepal Nepal (; ne, :ne:नेपाल, नेपाल ), formerly the Federal Democratic Republic of Nepal ( ne, सङ्घीय लोकतान्त्रिक गणतन्त्र नेपाल ), is a landlocked country in S ...

, southern

, the Philippines, and New Guinea **'' Engelhardia spicata'' var. ''integra'' (Kurz) W.E. Manning ex Steen., Fl. Males. I, 6: 953 (1972); Grierson & Long, Notes Roy. Bot. Gard. Edinburgh 40: 133. (1982), isonym; syn. var. ''colebrookiana'' (Lindl.) Koorders & Valeton *'' Engelhardia ursina''

References

External links

Flora of China: ''Engelhardia''
Engelhardioideae Fagales genera {{Fagales-stub