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Published In: The Michigan Botanist 3(2): 60. 1964. (Michigan Bot.) Name publication detail

Project Name Data (Last Modified On 2/27/2009)
Acceptance : Accepted
Project Data     (Last Modified On 5/5/2009)
General Reference:

Illustration & Map     (Last Modified On 5/5/2009)
Illustrations: Platydictya subtilis (Hedw.) H.A. Crum (Figs. 7–14.)
Map: Platydictya subtilis (Hedw.) H.A. Crum (Distribution in China)

Distribution     (Last Modified On 5/5/2009)


Habitat: on tree trunks and rocks; alt. unknown.
Distribution: China, Japan, India, Bhutan, Caucasus, Europe, and North America.

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


Chinese specimens examined: Heilongjiang: Xiao Xing An Ling (Mt.), Y.-H. Wu 1386 (IFSBH). Hubei: Mt. Shennongjia, P.-C. Wu 287b (MO). Nei Mongol: Mt. Helan, Z.-G. Tong 1213 (PE). Shaanxi: Hu Co., Giraldi 1022 (FI).

Notes     (Last Modified On 5/5/2009)
general taxon notes:


The plants of Platydictya subtilis are generally smaller than those of P. jungermannioides, and it differs from the latter by its entire leaf margins and its better-developed alar cells.


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2. Platydictya subtilis (Hedw.) H. A. Crum   小细柳藓   xiao xi liu xian
Michigan Bot. 3: 60. 1964. Amblystegiella subtilis (Hedw.) Loeske, Moosfl. Harz. 295. 1903. Amblystegium subtile (Hedw.) Schimp. in B.S.G., Bryol. Eur. 6: 48. 1853. Leskea subtilis Hedw., Sp. Musc. Frond. 221. 1801. Type: Germany.
Amblystegiella sinensi-subtilis (Müll. Hal.) Broth., Nat. Pflanzenfam. I(3): 1026. 1908. Platydictya sinensi-subtilis (Müll. Hal.) Redf. & B. C. Tan, Trop. Bryol. 10: 66. 1995. Amblystegium sinensi-subtile Müll. Hal., Nuovo Giorn. Bot. Ital., n.s., 3: 123. 1896. Type: China. Shaanxi (Schen-si), Kuan-tou-san, Giraldi 845 (BM, FI).
Plants minute, somewhat rigid, dull, dark green or yellowish green, in loosely caespitose mats. Stems prostrate, less than 1.0 cm long, irregularly branched; stem rounded in cross section; cortical cells small, in 1–2 layers, thick-walled; central strand absent; pseudoparaphyllia small, filamentous or foliose. Leaves erect-spreading, ovate-lanceolate, ca. 0.3 mm × 0.15 mm, gradually acuminate, obtuse at apex; costae single, short or indistinct; margins entire; median leaf cells narrowly rhombic to shortly rhomboidal, 8–16 mm × 7–8 mm, thick-walled; basal cells shortly rectangular; alar cells numerous, subquadrate, arranged along leaf base. Autoicous. Setae ca. 10 mm long; capsules suberect, oblong-ovoid, more or less symmetric; peristome double; exostome broadly lanceolate, cross-striate at base; endostome segments linear-lanceolate, papillose; basal membrane high; cilia 1–2. Spores 12–18 µm in diameter, minutely papillose.
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