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Moss China | Family List | Moss China V. 1 | Ditrichaceae | Ditrichum

4. Ditrichum flexicaule (Schwaegr.) Hampe, Flora. 50: 182. 1867; Cynodontium flexicaule Schwaegr., Sp. Musc. Frond., Suppl. 1(1): 113. 1811.


Plants medium-sized, 2–3 cm high, green or yellowish green, in loose tufts. Stems erect, simple or dichotomously branched, sparsely radiculose at base. Leaves 2.5–3.6 mm long, contorted when dry, erect-patent when moist, lanceolate, abruptly narrowed from an oblong-ovate base to a slender, somewhat canaliculate acumen; margins plane, entire nearly throughout; costa shortly excurrent; upper leaf cells rounded quadrate to short-rectangular, lower cells short-rectangular to rectangular, 6–8 µm × 10–13 µm, juxtacostal cells more elongate, 6–8 µm × 13–26 µm, thin-walled, shoulder cells rounded-quadrate, 7–8 µm × 8–13 µm, becoming thick-walled; sometimes with 2–3 rows of linear, pellucid cells at the basal margins. Dioicous. Sporophytes not seen.

Type. Switzerland: Schleicher s.n.

Chinese specimens examined: GUIZHOU: Leigong Shan (Mt.), S.-Z. Jiang 10731 (IFSBH). SHAANXI: Hua Shan (Mt.), M.-X. Zhang 387 (KUN); Taibai Shan (Mt.), Z.-P. Wei 5611, 5633 (KUN); Zhou-zhi Co., M.-X. Zhang 463 (KUN). XIZANG: Cuo-na Co., Y.-G. Su 1658 (KUN); Mo-tuo Co., Y.-G. Su 1653 (KUN).

Habitat: on soil or rocks; Distribution: China, Russian Far East, Europe, and North America.

Illustrations: C. Gao (ed.) 1994 (Pl. 34, figs. 8–11).


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