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!Ditrichum heteromallum (Hedw.) E. Britton Search in The Plant ListSearch in NYBG Virtual HerbariumSearch in Muséum national d'Histoire naturelleSearch in Type Specimen Register of the U.S. National HerbariumSearch in Virtual Herbaria AustriaSearch in JSTOR Plant ScienceSearch in SEINetSearch in African Plants Database at Geneva Botanical Garden Decrease font Increase font Restore font
 

Published In: North American Flora 15: 64. 1913. (N. Amer. Fl.) Name publication detailView in Biodiversity Heritage Library
 

Project Name Data (Last Modified On 3/5/2009)
Acceptance : Accepted
Project Data     (Last Modified On 3/6/2009)
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Illustration & Map     (Last Modified On 3/6/2009)
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Illustrations: C. Gao (ed.) 1994 (Pl. 31, figs. 1–10).
Map: Ditrichum heteromallum (Hedw.) E. Britton (Distribution in China)

Distribution     (Last Modified On 3/6/2009)
Distribution:

 

Habitat: on soil or rocks.
Distribution: China, India, Korea, Japan, Europe, Alaska, and North and South America.

Specimens Examined     (Last Modified On 3/6/2009)
Specimens Examined:

 

Chinese specimens examined: Guangdong: Chao-yang Co., X.-X. Huang & Z.-X. Li 11 (IBSC); Lian-ping Co., P.-J. Lin 1333 (IBSC). Guangxi: Tian-lin Co., C. Gao 2401 (IFSBH). Guizhou: Gui-yang City, Y. Zhang 599 (IFSBH). Hainan: C. Gao 2775 (IFSBH). Jiangxi: Lu Shan (Mt.), D.-K. Li 17348 (SHM). Sichuan: Ya-an Co., C. Gao et al. 17470 (IFSBH). Xizang: Mo-tuo Co., Y.-G. Su 4754 (KUN); Shejila Shan (Mt.), S.-K. Chen 359 (IFSBH). Yunnan: Gong-shan Co., M.-Z. Wang 9361 (IFSBH, PE), D.-C. Zhang 1066 (KUN).

 

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6. Ditrichum heteromallum (Hedw.) Britt.   牛毛藓 niu-mao xian
N. Amer. Fl. 15: 64. 1913. Weissia heteromalla Hedw., Sp. Musc. Frond. 71. 1801. Syntypes. Austria and Switzerland.
Ditrichum homomallum (Hedw.) Hampe, Flora 50: 182. 1867. Didymodon homomallus Hedw., Sp. Musc. Frond. 105. 1801.
Ditrichum subtortile Card., Bull. Herb. Boiss., sér. 2, 7: 716. 1907.
 

Plants small, up to 1.0 cm high, yellowish green, in loose tufts. Stems erect, simple. Leaves slightly homomallous, appressed when dry, erect-patent when moist, lanceolate, 2.0–3.5 mm long, abruptly narrowed from an ovate base to a long, setaceous acumen; margins plane and entire; costa stout, percurrent to short-excurrent, filling almost the entire subula; cells elongate throughout, rectangular to linear, 20–40 µm × 3–5 µm, rather thin-walled. Dioicous. Perichaetial leaves larger than the upper stem leaves, sheathing at base. Setae straight, 1.5–2.0 cm long, reddish brown; capsules erect, cylindric, nearly symmetric, ca. 2 mm × 0.3–0.4 mm, reddish brown, slightly contracted below the mouth; opercula short conic-rostrate; annuli in 2 rows of large, thick-walled cells; peristome teeth linear, 250–300 µm long, divided nearly to the base, whitish yellow, irregularly papillose. Spores 10–12 µm in diameter, yellow, nearly smooth.

 
 


 

 
 
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