''Quercus chevalieri'' is an uncommon species of tree in the beech family

Fagaceae The Fagaceae are a family of flowering plants that includes beeches, chestnuts and oaks, and comprises eight genera with about 927 species. Fagaceae in temperate regions are mostly deciduous, whereas in the tropics, many species occur as evergre ...

. It has been found in Vietnam and also in southern China, in the Provinces of

Guangdong Guangdong (, ), alternatively romanized as Canton or Kwangtung, is a coastal province in South China on the north shore of the South China Sea. The capital of the province is Guangzhou. With a population of 126.01 million (as of 2020) ...

Guangxi Guangxi (; ; Chinese postal romanization, alternately romanized as Kwanghsi; ; za, Gvangjsih, italics=yes), officially the Guangxi Zhuang Autonomous Region (GZAR), is an Autonomous regions of China, autonomous region of the People's Republic ...

, and

Yunnan Yunnan , () is a landlocked Provinces of China, province in Southwest China, the southwest of the People's Republic of China. The province spans approximately and has a population of 48.3 million (as of 2018). The capital of the province is ...

.Flora of China, ''Cyclobalanopsis chevalieri'' (Hickel & A. Camus) Y. C. Hsu & H. W. Jen, 1993. 黑果青冈 hei guo qing gang
/ref> It is placed in subgenus ''Cerris'', section ''Cyclobalanopsis''. ''Quercus chevalieri'' is a tree up to 20 m. tall with leaves as much as 110 mm long. The

acorn The acorn, or oaknut, is the nut of the oaks and their close relatives (genera ''Quercus'' and '' Lithocarpus'', in the family Fagaceae). It usually contains one seed (occasionally two seeds), enclosed in a tough, leathery shell, and borne ...

is ovoid to oblong-ellipsoid, 10-15 (sometimes 20) × 6-8 (sometimes 15) mm, glabrous; the scar is approx. 5 mm in diameter. Some authors have misapplied this name to another plant, ''Cyclobalanopsis augustinii'' var. ''nigrinux'' (H.H. Hu) M. Deng & Z.K. Zhou.Tropicos, ''Quercus chevalieri'' auct. non Hickel & A. Camus
/ref>

References

External links

line drawings, Flora of China Illustrations vol. 4, fig. 384, drawings 3 + 4 at lower right
chevalieri Flora of Vietnam Flora of Indo-China Trees of Vietnam Flora of China Plants described in 1921 Taxa named by Aimée Antoinette Camus {{Quercus-stub