Pellionia

Pellionia
	Pellionia repens
Systematics
	Rosids
	Eurosiden I
Order :	Rose-like (rosales)
Family :	Nettle family (Urticaceae)
Tribe :	Procrideae
Genre :	Pellionia
Scientific name
	Pellionia
	Gaudich.

Pellionia is a genus of plants belonging tothe nettle family (Urticaceae), the species of which are common in the tropics and subtropics .

description

The Pellionia species are perennial herbaceous plants or many species are lignified at the bottom, so they are subshrubs . The non-lignified shoots are often a bit fleshy and break off easily. However, broken branches can easily take root again. The plants have no stinging hairs .

The leaves are alternate . From the original, opposite, distal (two-line) foliage , one leaf is reduced and either very small or completely absent. The veins of the leaves are reticulate, with many species not only having the central rib on each side but also two strong secondary ribs branching off slightly above the base of the leaf. The leaves are asymmetrical at the base. The leaf margin can be whole or toothed. The normal foliage leaves each have two stipules .

There are monoecious as well as dioecious plants in the genus and even within individual species , with the flowers also being unisexual in the first case. The flowers are in axillary zymous inflorescences . The perianth is four or five lobed. In the male flowers, it is about half fused. The perianth lobes of the female flowers are often of unequal length.

Distribution and location requirements

The genus is distributed in the tropics and subtropics of Asia and on the Pacific islands.

Most species grow on the floor of forests in valleys, ravines, or other dark and humid locations.

Pellionia pulchra

Pellionia repens

Systematics

The genus consists of around 60 to 70 species. It is sometimes included in the genus Procris Comm. ex Juss. incorporated. Here is a selection of species:

Pellionia acutidentata W.T. Wang : It occurs in northern Vietnam and southeastern Yunnan.
Pellionia brachyceras W.T. Wang : It occurs in Guangxi .
Pellionia brevifolia Benth. (Syn .: Pellionia minima Makino ): It occurs in China and Japan.
Pellionia caulialata S.Y. Liou : It occurs in Guangxi .
Pellionia grijsii Hance : It occurs in China.
Pellionia heteroloba Wedd. : It occurs in Bhutan, India, Laos, Myanmar, Sikkim , in northern Vietnam and in China.
Pellionia heyneana Wedd. : It occurs in India, Indonesia, Sri Lanka, Thailand, Cambodia and China.
Pellionia incisoserrata (H. Schroet.) WT Wang : It occurs in northern Guangdong and northeastern Guangxi .
Pellionia latifolia (flower) Boerl. : It occurs in Indonesia, Laos, Cambodia, Malaysia, Myanmar, Thailand, Vietnam and in China.
Pellionia leiocarpa W.T. Wang : It occurs in Guangxi .
Pellionia longipedunculata W.T. Wang : It occurs in northern Vietnam and southern Guangxi .
Pellionia macrophylla W.T. Wang : It occurs in western Guangxi and southern Yunnan at altitudes between 1700 meters and 2000 meters.
Pellionia paucidentata (H. Schroet.) SS Chien : It occurs in northern Vietnam and China.
Pellionia pulchra N.E. Br .: Home: South Vietnam
Pellionia radicans (Siebold & Zucc.) Wedd. : It occurs in northern Vietnam, Japan, Korea and China.
Pellionia repens (Lour.) Merr. (Syn .: Pellionia daveauana (Carrière) NE Br. ); Home: India, Bhutan, Indonesia, Myanmar, Malay Peninsula, Thailand, Cambodia, Laos, Vietnam, Hainan and Yunnan .
Pellionia retrohispida W.T. Wang : It occurs in China.
Pellionia scabra Benth. : Home: Japan, Vietnam and China.
Pellionia veronicoides Gagnep. : It occurs in northern Vietnam and southeastern Yunnan.
Pellionia viridis C.H. Wright : There are two varieties of it in China.
Pellionia yunnanensis (H. Schroet.) WT Wang : It occurs in southeastern Yunnan .

Sources and further information

literature

Urania plant kingdom . Volume 3: Flowering Plants 1, 1st edition. Urania-Verlag, Leipzig 1991, ISBN 3-332-00367-4 .
Walter Erhardt among others: The big pikeperch. Encyclopedia of Plant Names . Volume 2. Verlag Eugen Ulmer, Stuttgart 2008. ISBN 978-3-8001-5406-7

Individual evidence

↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p ^q ^r Lin Qi (林祁); Ib Friis, C. Melanie Wilmot-Dear: Pellionia Gaudichaud-Beaupré. - Same text online as the printed work , In: Wu Zheng-yi, Peter H. Raven, Deyuan Hong (Ed.): Flora of China. Volume 5: Urticaceae.
^ ^A ^b Pellionia in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved May 4, 2017.

Web links

Commons : Pellionia - collection of images, videos and audio files

Flora of China - Pellionia (Engl.)

[FoC-1] ↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p ^q ^r Lin Qi (林祁); Ib Friis, C. Melanie Wilmot-Dear: Pellionia Gaudichaud-Beaupré. - Same text online as the printed work , In: Wu Zheng-yi, Peter H. Raven, Deyuan Hong (Ed.): Flora of China. Volume 5: Urticaceae.

[GRIN-2] A ^b Pellionia in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved May 4, 2017.