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Published In: Journal of the Bombay Natural History Society 39: 774. 1937. (J. Bombay Nat. Hist. Soc.) Name publication detail
 

Project Name Data (Last Modified On 3/9/2009)
Acceptance : Accepted
Project Data     (Last Modified On 4/30/2009)
General Reference:

Illustration & Map     (Last Modified On 4/30/2009)
Illustrations: Dicranum assamicum Dixon (Figs. 1–10.)
Map: Dicranum assamicum Dixon (Distribution in China)

Distribution     (Last Modified On 4/30/2009)
Distribution:
Habitat: on soil, bases of trees or rotten wood.
Distribution: China and India.

Specimens Examined     (Last Modified On 4/30/2009)
Specimens Examined:
Chinese specimens examind: Sichuan: Dao-cheng Co., M.-Z. Wang 8142625 (IFSBH, PE); Mu-li Co., C. Gao 20317 (IFSBH). Xizang: Cha-yu Co., M.-Z. Wang 12759(b) (IFSBH, PE); Mi-lin Co., Y.-G. Su 5201 (KUN).

 

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1. Dicranum assamicum Dix.   阿萨姆曲尾藓 a-sa-mu qu-wei xian
J. Bombay Nat. Hist. Soc. 39: 774. 1937. Type. India: Naga Hills, Bor 333.
 
Plants coarse, fairly robust, caespitose, up to 8 cm high, green to deeply brownish green, shiny, in dense tufts. Stems erect or ascending, simple or branched, homomallous. Leaves falcate-secund when dry, erect-patent when moist, narrowly lanceolate, up to 9 mm long, gradually narrowed from a somewhat sheathing base to a canaliculate or keeled subula; margins plane or slightly incurved, entire below, serrate in the upper third; costa slender, light brownish, percurrent, serrate at back above; median to upper cells elongate, rhomboidal, 45–55 µm × 8–10 µm, relatively thin-walled, not porose, spinosely projecting at the margins; basal cells rectangular, 75–85 µm × 12–16 µm, thick-walled, porose; alar cells quadrate to short-rectangular, tristratose, reddish brown. Dioicous. Perichaetial leaves shorter than the upper stem leaves, cylindrically clasping at base, abruptly narrowed to a short subula. Setae single, straight, yellowish, ca. 2.7 cm long; capsules erect, short-cylindric, ca. 4.7 mm × 1 mm, yellowish brown; opercula long-rostrate, ca. 0.3 mm long; peristome teeth ca. 0.48 mm long, divided to the middle, smooth above, usually perforate and transversely barred below, without vertical striation. Spores 20–23 µm in diameter, papillose, brownish.
 
 
 
 


 

 
 
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