Tropicos | Name - !Pohlia leucostoma (Bosch & Sande Lac.) M. Fleisch.

China Moss > Bryaceae > Pohlia > Pohlia leucostoma

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!Pohlia leucostoma (Bosch & Sande Lac.) M. Fleisch.

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Project Name Data (Last Modified On 3/18/2009)

Acceptance : Accepted

Project Data (Last Modified On 5/4/2009)

General Reference:

Li Xing-jiang, M. R. C. & Si He (editors). 2007. Bryaceae–Timmiaceae. 4. viii + 211 pages. In Moss Fl. China. Science Press & Missouri Botanical Garden, Beijing, New York & St. Louis.

Illustration & Map (Last Modified On 5/4/2009)

Illustrations:

Pohlia leucostoma (Bosch & Sande Lac.) M. Fleisch. (Figs. 1–8.)

Map:

Distribution (Last Modified On 5/4/2009)

Distribution:

Habitat: on soil or thin soil over rocks; alt. 1700–3000 m.

Distribution: China, Japan, India, Nepal, Indonesia, and U.S.A. (Hawaii).

Specimens Examined (Last Modified On 5/4/2009)

Specimens Examined:

Chinese specimens examined: Xizang: Ya-dong Co., Xizang Team 7855 (HKAS). Yunnan: Bao-shan Co., X.-J. Li 80-275 (HKAS); Gong-shan Co., M. Zang 747, 883, 1054 (all in HKAS); Kunming City, D.-C. Zhang 95-0914 (HKAS).

Notes (Last Modified On 5/4/2009)

general taxon notes:

This species is characterized by having two different colors of its gemmae. The ovoid gemmae are reddish brown to pale brown; while the linear or vermicular gemmae are green or pale green.

Ochi (1959) considered that Pohlia leucostoma differs from P. gracillima in the morphology of its gemmae. The former has a large number of ovoid gemmae, occasionally a few linear ones in leaf axils, while the latter often produces abundant linear gemmae. We notice that specimens of P. leucostoma from Xizang and northwestern Yunnan produce mostly ovoid gemmae, sometimes mixed with both ovoid and linear ones, while plants from moist habitats in central and lower elevation regions of China tend to produce a large number of linear gemmae. For this reason, and after our examinations of many collections, we concluded that these two taxa belong to a single species that has different types of gemmae depending on moisture in the environment.