Androsace acuta

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

Interesting Facts

Description

Family Primulaceae

Herbs perennial or annual , rarely suffruticose . Leaves alternate, opposite, or whorled , often all basal, simple , entire to lobed . Flowers solitary or in panicles, racemes , or umbels, usually with bracts, perfect , (4- or) 5(--9) -merous, often heterostylous (Primula) . Calyx persistent . Corolla gamopetalous, actinomorphic , rarely absent (Glaux) . Stamens as many as and opposite corolla lobes , ± epipetalous , occasionally with scalelike staminodes. Filaments free or connate into a tube at base . Ovary superior, rarely semi-inferior (Samolus), unilocular ; placentation free central; style simple; stigma inconspicuous, capitate. Fruit a capsule, dehiscing by valves , rarely circumscissile or indehiscent. Seeds many or few; embryo small, straight, surrounded by endosperm.

The family contains 22 genera and ca. 1000 species, occurring mainly in temperate and mountainous regions of the northern hemisphere. Twelve genera and 517 species are widely distributed throughout China, but are represented mostly in the S and W regions. The centers of diversity for Primula, Androsace, and Omphalogramma are W Sichuan, E Xizang, and NW Yunnan. Lysimachia is also highly developed in provinces S of the Chang Jiang, while Pomatosace is an endemic genus confined to a small area of NW Sichuan and Qinghai.

Many species of Primula and Androsace are cultivated for their attractive flowers as pot plants , in rock gardens, or in garden borders . Some species of Lysimachia are used medicinally. Cyclamen persicum Miller is frequently cultivated as a pot plant.[1]

Genus Androsace

Herbs perennial , annual , or biennial, acaulescent , rarely caulescent with ascending or decumbent shoots from a caudex . Leaves forming a rosette, rarely alternate; rosettes solitary or clustered, forming lax mats or compact cushions . Inflorescences umbellate , rarely a solitary flower, with bracts. Flowers 5-merous, homostylous. Calyx campanulate to subglobose, shallowly to deeply lobed . Corolla white, pink, purple, or dark red, rarely yellow; tube usually ± inflated , ca. as long as to shorter than calyx; throat constricted ; lobes entire or emarginate . Stamens included , inserted on corolla tube; filaments very short; anthers ovate , apex obtuse . Style not longer than corolla tube. Capsule subglobose, dehiscing nearly to base . Seeds few to many.

Approximately 100 species widely distributed in temperate regions of the northern hemisphere; 73 species native to China.[2]

Taxonomy

Synonyms

Androsace occidentalis Pursh var. acuta (Greene) Jeps.

Notes

Publishing author : Greene Publication : Man. Bot. San Francisco 238 1894

Similar Species

Members of the genus Androsace

ZipcodeZoo has pages for 46 species, subspecies, varieties, forms, and cultivars in this genus:

A. alpina (Rock Jasmine) · A. brevis (Rock Jasmine) · A. carnea (Rock Jasmine) · A. chamaejasme (Rock Jasmine) · A. chamaejasmeersonii (Anderson's Rockjasmine) · A. chamaejasme andersonii (Anderson's Rockjasmine) · A. chamaejasme subsp. andersonii (Anderson's Rockjasmine) · A. chamaejasme subsp. carinata (Sweetflower Rockjasmine) · A. chamaejasme subsp. lehmanniana (Lehmann's Rockjasmine) · A. ciliata (Rock Jasmine) · A. cylindrica (Rock Jasmine) · A. delavayi (Rock Jasmine) · A. elongata (California Rock-Jasmine) · A. elongata acuta (Lehmann Sweet-Flowered Fairy-Candelabra) · A. elongata subsp. acuta (California Rockjasmine) · A. filiformis (Filiform Rockjasmine) · A. globifera (Rock Jasmine) · A. hausmannii (Rock Jasmine) · A. hedraeantha (Rock Jasmine) · A. hirtella (Rock Jasmine) · A. lanuginosa (Rock Jasmine) · A. maxima (Greater Rockjasmine) · A. muscoidea (Rock Jasmine) · A. occidentalis (Western Rock Jasmine) · A. pyrenaica (Rock Jasmine) · A. sarmentosa (Rock Jasmine) · A. sempervivoides (Rock Jasmine) · A. septentrionalis (Northern Rockjasmine) · A. septentrionalis glandulosa (Pygmyflower Rock Jasmine) · A. septentrionalis glandulosa var. glandulosa (Northern Rockjasmine) · A. septentrionalis puberulenta (Northern Rockjasmine) · A. septentrionalis robusta (Northern Rockjasmine) · A. septentrionalis septentrionalis (Northern Rockjasmine) · A. septentrionalis subulifera (Northern Rockjasmine) · A. septentrionalis subumbellata (Northern Rockjasmine) · A. septentrionalis subsp. glandulosa (Pygmyflower Rock Jasmine) · A. septentrionalis subsp. puberulenta (Pygmy-Flower Rock-Jasmine) · A. septentrionalis subsp. robusta (Pygmyflower Rockjasmine) · A. septentrionalis subsp. subulifera (Pygmyflower Rock Jasmine) · A. septentrionalis subsp. subumbellata (Pygmyflower Rockjasmine) · A. subulifera (Pygmyflower Rock Jasmine) · A. subumbellata (Pygmyflower Rockjasmine) · A. vandellii (Rock Jasmine) · A. villosa (Rock Jasmine) · A. wulfeniana (Rock Jasmine) · A. 'Millstream' (Rock Jasmine)

More Info

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Further Reading

• A botanical exploration of the north shore of the gulf of St. Lawrence including an annotated list of the species of vascular plants, Ottawa, F. A. Acland, printer, 1922. url p. 123.
• A flora of California, by Willis Linn Jepson. San Francisco, Calif., Cunningham, Curtis & Welch, 1909- url p. 73.
• A flora of western middle California, Berkeley, Cal., Encina Publishing Company, 1901. url .
• An illustrated flora of the Pacific States: Washington, Oregon, and California. Stanford University, Stanford University Press, 1923-[60] url p. 337, p. 339.
• Bulletin of the Southern California Academy of Sciences. Los Angeles, Calif.: The Academy, 1902-1971. url , p. 10.
• Occasional papers - San Diego Society of Natural History. 1949 San Diego, The Society. url p. 105, p. 105.
• West Coast botany: an analytical key to the flora of the Pacific Coast in which are described over eighteen hundred species of flowering plants growing west of the Sierra Nevada and Cascade crests, from San Diego to Pug by Volney Rattan. San Francisco: Whitaker & Ray, 1898. url p. 50.
• Chen Feng-hwai, Hu Chi-ming, Fang Yun-yi, Cheng Chao-zong, Yang Yong-chang & Huang Rong-fu In Chen Feng-hwai & Hu Chi-ming, editors. 1990. Primulaceae (1). Fl. Reipubl. Popularis Sin. 59(1): 1-217
• Hu Chi-ming In Chen Feng-hwai & Hu Chi-ming, editors. 1990. Primulaceae (2). Fl. Reipubl. Popularis Sin. 59(2): 1-321.

Notes

Contributors

• Brands, S.J. (comp.) 1989-present. The Taxonomicon. Universal Taxonomic Services, Zwaag, The Netherlands. Accessed January 10, 2012.

Identifiers

• Biodiversity Heritage Library NamebankID: 2773789
• Zipcode Zoo Species Identifier: 4022050

Footnotes

1. Qiming Hu & Sylvia Kelso "Primulaceae". in Flora of China Vol. 15 Page 39. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
2. "Androsace". in Flora of China Vol. 15 Page 80. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]

©2004-2012 David Stang. All rights reserved.