False camellias

False camellias
	Stewartia pseudocamellia
Systematics
	Eudicotyledons
	Nuclear eudicotyledons
	Asterids
Order :	Heather-like (Ericales)
Family :	Tea plant family (Theaceae)
Genre :	False camellias
Scientific name
	Stewartia
	L.

The dummy camellias ( Stewartia ) are a genus of the tea bush family (Theaceae). The genus is named after John Stuart , 3rd Earl of Bute.

description

Mock camellias are evergreen or deciduous trees or shrubs . The opposite leaves are membranous or leathery. The leaf margin is usually serrated. The short flower stalks are winged. Stipules are missing.

The stalked flowers are individually in the leaf axils or a few in short racemose inflorescences . There are two permanent pre-leaves . The hermaphrodite flowers are fivefold. The five identically shaped sepals are fused at their base. The five white or yellowish-white petals are weakly fused at their base. In the numerous stamens , the stamens are fused in their lower half with each other and with the petals. The Upper constant ovary is fünffächrig, with one to seven ovules per carpel . The stylus is unbranched or branched.

The five-ribbed, five-fold, egg-shaped to cylindrical capsule fruit is usually enclosed by the preserved calyx. The approximately egg-shaped or flattened, small seeds are winged or not. The cotyledons are thin and flat. The fleshy endosperm is usually very thin.

distribution

The genus is found in Asia and America. China is the center of biodiversity with around 20 species. In addition, three species are common in Japan and Korea and two in the southeastern United States .

Systematics

Stewartia monadelpha

Stewartia pseudocamellia var. Koreana , fruits and seeds

The genus contains around 30 species, including:

Stewartia calcicola T.L. Ming & J.Li : It occurs in Guangxi and Yunnan.
Stewartia cordifolia (HLLi) J.Li & TLMing : It occurs in Guangxi, Guizhou and Hunan.
Stewartia crassifolia (SZYan) J.Li & TLMing : It occurs in Guangdong, Guangxi, Hunan and Jiangxi.
Stewartia densivillosa (Hu ex Hung T.Chang & CXYe) J.Li & TLMing : It occurs in Yunnan.
Stewartia laotica (Gagnep.) J.Li & TLMing : It occurs in Laos, Vietnam, Yunnan and Guangxi.
Stewartia malacodendron L .: It is found in Texas and the southeastern United States.
Stewartia medogensis J.Li & TLMing : It occurs in Xizang.
Stewartia micrantha (Chun) Sealy : It occurs in Fujian and Guangdong.
Stewartia monadelpha Siebold & Zucc. : It occurs in Japan on Honshu, Kyushu and Shikoku.
Stewartia obovata (Chun ex Hung T.Chang) J.Li & TLMing : It occurs in Guangxi and Guangdong.
Stewartia ovata (Cav.) Weath. : It occurs in Alabama, Georgia, Kentucky, Mississippi, North Carolina, South Carolina, Tennessee, and Virginia.
Japanese mock camellia or summer camellia ( Stewartia pseudocamellia Maxim. ): There are two varieties:
- Stewartia pseudocamellia var. Pseudocamellia : It occurs in Japan on Honshu, Kyushu and Shikoku.
- Korean false camellia ( Stewartia pseudocamellia var. Koreana (Nakai) Sealy , Syn .: Stewartia koreana Nakai ex Rehder ): It occurs in South Korea.
Stewartia pteropetiolata W.C.Cheng : It occurs in southern and western Yunnan.
Upright false camellia ( Stewartia rostrata Spongberg ): It occurs in the Chinese provinces of Anhui, Henan, Hubei, Hunan, Jiangxi and Zhejiang.
Stewartia rubiginosa Hung T.Chang : It occurs in two varieties in Guangdong, Guangxi and Hunan.
Stewartia sichuanensis (SZYan) J.Li & TLMing : It occurs in Sichuan.
Stewartia sinensis Rehder & EH Wilson : It occurs in four varieties in Anhui, Fujian, Guangxi, Guizhou, Henan, Hubei, Hunan, Jiangxi, Shaanxi, Sichuan, Yunnan and Zhejiang.
Stewartia sinii (Wu) Sealy : It occurs in Guangxi.
Stewartia villosa Merr. : It occurs in three varieties in Guangdong, Guangxi and Jiangxi.

proof

PF Stevens, S. Dressler, AL Weitzman: Theaceae. In: Klaus Kubitzki (Ed.): The Families and Genera of Vascular Plants . Volume 6: Flowering Plants, Dicotyledons: Celastrales, Oxalidales, Rosales, Cornales, Ericales . Springer, Berlin / Heidelberg / New York 2004, ISBN 3-540-06512-1 , pp. 463–471 (English, limited preview in Google Book Search).
Description in the Flora of China. (engl.)

Individual evidence

Most of the information in this article has been taken from the sources given under references; the following sources are also cited:

↑ Umberto Quattrocchi: CRC World Dictionary of Plant Names: Common Names, Scientific Names, Eponyms, Synonyms, and Etymology . CRC Press Inc., 2000, p. 2572. ISBN 0849326761
↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o Tianlu Min & Bruce Bartholomew: Stewartia . In: Flora of China, vol. 12, Theaceae. Stewartia
^ ^A ^b ^c ^d Stewartia in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved October 5, 2017.

Web links

Commons : Mock Camellias ( Stewartia ) - Collection of images, videos and audio files

[1] Umberto Quattrocchi: CRC World Dictionary of Plant Names: Common Names, Scientific Names, Eponyms, Synonyms, and Etymology . CRC Press Inc., 2000, p. 2572. ISBN 0849326761

[FoC-2] ↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o Tianlu Min & Bruce Bartholomew: Stewartia . In: Flora of China, vol. 12, Theaceae. Stewartia

[GRIN-3] A ^b ^c ^d Stewartia in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved October 5, 2017.