Leucosidea sericea

• Interesting Facts
• Description
• Biology
• Taxonomy
• Similar Species
• More Info
• Further Reading
• Notes

Interesting Facts

Description

Family Rosaceae

Trees , shrubs , or herbs, deciduous or evergreen . Stems erect , scandent , arching , prostrate , or creeping , armed or unarmed . Buds usually with several exposed scales , sometimes with only 2. Leaves alternate, rarely opposite, simple or compound ; stipules paired , free or adnate to petiole , rarely absent, persistent or deciduous; petiole usually 2-glandular apically; leaf blade often serrate at margin , rarely entire. Inflorescences various, from single flowers to umbellate , corymbose , racemose or cymose-paniculate. Flowers usually actinomorphic , bisexual , rarely unisexual and then plants dioecious. Hypanthium (formed from basal parts of sepals, petals, and stamens) free from or adnate to ovary, short or elongate . Sepals usually 5, rarely fewer or more, imbricate; epicalyx segments sometimes also present. Petals as many as sepals, inserted below margin of disk, free, imbricate, sometimes absent. Disk lining hypanthium, usually entire, rarely lobed . Stamens usually numerous , rarely few, always in a complete ring at margin of or above disk; filaments usually free, very rarely connate ; anthers small, didymous , rarely elongate, 2-locular. Carpels 1 to many, free, or ± connate and then adnate to inner surface of cupular receptacle; ovary inferior, semi-inferior, or superior; ovules usually 2 in each carpel, rarely 1 or several, anatropous , superposed . Styles as many as carpels, terminal , lateral , or basal, free or sometimes connate. Fruit a follicle, pome, achene, or drupe, rarely a capsule, naked or enclosed in persistent hypanthium and sometimes also by sepals. Seeds erect or pendulous, sometimes winged , usually exalbuminous , very rarely with thin endosperm; cotyledons mostly fleshy and convex abaxially, rarely folded or convolute.

Between 95 and 125 genera and 2825-3500 species: cosmopolitan , mostly in N temperate zone; 55 genera (two endemic) and 950 species (546 endemic) in China.

Many plants of this family are of economic importance and contribute to people s livelihoods. The Rosaceae contain a great number of fruit trees of temperate regions . The fruits contain vitamins, acids, and sugars and can be used both raw and for making preserves, jam, jelly, candy, various drinks, wine, vinegar, etc. The dried fruits of the genera

Amygdalus and Armeniaca are of high commercial value. Some plants in the genus Rosa containing essential oils or with a high vitamin content are used in industry . Rosaceae wood is used for making various articles, stems and roots are used for making tannin extract, and young leaves are used as a substitute for tea. Numerous species are used for medical purposes or are cultivated as ornamentals .

The Rosaceae are very well represented in China, with great economic and scientific importance. The Co-chairs of the Editorial Committee (Wu and Raven) here note that the patterns of relationship are complex and the group is taxonomically difficult. [1]

Physical Description

Biology

Growth

Culture: Space 12-15' apart.

Sunlight: Sun Exposure: Full sun .

Moisture: Drought Tolerance: High

Temperature: Cold Hardiness: 8b, 9a, 9b, 10a, 10b. (map)

Taxonomy

Notes

Name Status: Accepted Name .

Last scrutiny: 2009

Similar Species

Members of the genus Leucosidea

ZipcodeZoo has pages for 0 species, subspecies, varieties, forms, and cultivars in this genus:

More Info

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Further Reading

• A record of plants collected in Southern Rhodesia; arramged on Engler's system. Compiled by Fred. Eyles. Cape Town, 1916 url p. 359.
• Annals of the South African Museum. Annale van die Suid-Afrikaanse Museum. Cape Town [etc., South African Museum, etc.] url p. 6, p. 90.
• Dictionary of the common names of plants with list of foreign plants cultivated in the open / by Rudolf Marloth. Cape Town: Specialty Press of South Africa, 1917. url p. 25, p. 63.
• IUCN Directory of Afrotropical Protected Areas IUCN, UNEP url p. 1023, p. 318, p. 595, p. 648, p. 649, p. 668, p. 673, p. 692.
• Plant-geography upon a physiological basis. Oxford: Clarendon Press, 1903. url p. 763.
• Report on the Natal forests. .. [S.l.: s.n.], 1889. url p. 107, p. 124, p. 17, p. 19, p. 6.
• Science progress. London: John Murray, 1916- url p. 573.
• South African journal of natural history. Pretoria, South African Biological Society. url p. 108, p. 11, p. 129, p. 220, p. 221, p. 222, p. 84.
• South African journal of science. [Marshalltown, Transvaal: South African Association for the Advancement of Science, url p. 14, p. 210, p. 75.
• The grasses and grasslands of South Africa, Pietermaritzburg, P. David & Sons, Ltd., Printers, 1918. url , .
• Transactions of the South African Philosophical Society. 18 1907 Cape Town, : The Society. url p. 153.
• Yü Te-tsun, Lu Ling-ti, Ku Tsue-chih, Li Chao-luan, Kuan Ke-chien & Chiang Wan-fu. 1974, 1985, 1986. Rosaceae. In: Yü Te-tsun, ed., Fl. Reipubl. Popularis Sin. 36: 1443; 37: 1516; 38: 1133.

Notes

Contributors

• Brands, S.J. (comp.) 1989-present. The Taxonomicon. Universal Taxonomic Services, Zwaag, The Netherlands. Accessed January 22, 2012.

Identifiers

• Biodiversity Heritage Library NamebankID: 3462404
• Catalogue of Life Accepted Name Code: Ros-1362
• Global Biodiversity Information Facility Taxonkey: 13689509
• Globally Unique Identifier: urn:lsid:ipni.org:names:725970-1
• Zipcode Zoo Species Identifier: 749777

Footnotes

1. Cuizhi Gu, Chaoluan Li, Lingdi Lu, Shunyuan Jiang, Crinan Alexander, Bruce Bartholomew, Anthony R. Brach, David E. Boufford, Hiroshi Ikeda, Hideaki Ohba, Kenneth R. Robertson & Steven A. Spongberg "Rosaceae". in Flora of China Vol. 9 Page 46. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]

©2004-2012 David Stang. All rights reserved.