''Quercus blakei'' 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 Indochina (

Laos Laos (, ''Lāo'' )), officially the Lao People's Democratic Republic ( Lao: ສາທາລະນະລັດ ປະຊາທິປະໄຕ ປະຊາຊົນລາວ, French: République démocratique populaire lao), is a socialist ...

and

Vietnam Vietnam or Viet Nam ( vi, Việt Nam, ), officially the Socialist Republic of Vietnam,., group="n" is a country in Southeast Asia, at the eastern edge of mainland Southeast Asia, with an area of and population of 96 million, making i ...

) and southern China (

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 ...

Guizhou Guizhou (; formerly Kweichow) is a landlocked province in the southwest region of the People's Republic of China. Its capital and largest city is Guiyang, in the center of the province. Guizhou borders the autonomous region of Guangxi to t ...

Hainan Hainan (, ; ) is the smallest and southernmost province of the People's Republic of China (PRC), consisting of various islands in the South China Sea. , the largest and most populous island in China,The island of Taiwan, which is slightly l ...

).Flora of China, ''Cyclobalanopsis blakei'' (Skan) Schottky, 1912. 栎子青冈 li zi qing gang
/ref> It is placed in subgenus ''Cerris'', section ''Cyclobalanopsis''.

Description

''Quercus blakei'' is a tree up to 35 m. tall, with leaves as much as 190 mm long.Skan, Sidney Alfred 1900. Hooker's Icones Plantarum 27(3): plate 2662 and subsequent unnumbered text page
description in Latin, commentary in English, full-page line drawing of ''Quercus blakei'' 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 ...

s are ellipsoid to ovoid, 25-35 × 15–30 mm with a flat to depressed scar 7–11 mm in diameter. The cupules are shallow-bowl-shaped, 5-10 × 20–30 mm, covering base of acorn, with bracts in 6 or 7 rings, margin entire or dentate. In China, flowering occurs in March and acorns ca be found from October–December.

References

External links

Line drawings, Flora of China Illustrations vol. 4, fig. 386, drawings 5-11 and lower left and upper left
blakei Flora of China Flora of Indo-China Trees of Vietnam Plants described in 1900 {{Quercus-stub