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Published In: Miscellanea Bryologica et Lichenologica 5: 107. 1970. (Misc. Bryol. Lichenol.) Name publication detail

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General Reference:

Notes     (Last Modified On 3/30/2009)
general taxon notes:
Bryonoguchia contains 2 species in the world, commonly on rock surfaces, humus, decaying logs or tree trunks in high altitude forests. Bryonoguchia molkenboeri (Sande Lac.) Iwats. & Inoue was first reported from northeastern China as Tetracladium molkenboeri (Sande Lac.) Fleisch. (C. Gao et al. 1977). C. Gao and G.-C. Zhang (1982) published the genus, Bryochenea with B. ciliata as its type species and included another species, B. sachalinensis. Most recently, P.-C. Wu and Y. Jia (2000) reduced Bryochenea ciliata to synonymy of Bryonoguchia molkenboeri and transferred Bryochenea sachalinensis to Helodium. The genus Bryochenea, therefore, is treated as a synonym of Bryonoguchia. In this study, we recognize two species, Bryonoguchia molkenboeri and a recently published new species B. brevifolia S.-Y. Zeng (S.-Y. Zeng 1991).


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4. Bryonoguchia Iwats. & Inoue 毛羽藓属 mao-yu xian shu
Misc. Bryol. Lichenol. 5(7): 107. 1970.
Bryochenea C. Gao & G.-C. Chang, Bull. Bot. Res. Harbin 2 (4): 113. 1982.
Plants robust, 5–10 cm long, yellowish green to light green above, yellowish brown at low portion, in loosely interwoven patches. Stems creeping, ca. 0.7 mm in diameter, regularly bipinnately to tripinnately branched; branches flagelliform, with dense rhizoids; central strand present; paraphyllia foliose or filamentous, mostly branched, densely on stems and branches. Stem leaves and branch leaves differentiated; stem leaves flexuous when dry, erect-patent when moist, ovate or cordate-ovate, gradually narrowed to a lanceolate apex, 1.5–2.0 mm long; margins coarsely dentate, papillose at base; costa stout, ending at upper portion of leaves, rarely excurrent, with a few papillae or paraphyllia on back; median leaf cells rhomboidal or rectangular, 5–8 µm × 15–25 µm, thick-walled, unipapillose; basal median cells smooth; branch leaves concave, triangularly ovate, with short lanceolate apex, 0.6–0.9 mm long; margins grossly serrate; costa ending at the middle of leaf; median leaf cells usually rhomboidal, setulosely unipapillose; apical cells 1–3 papillae. Dioicous. Perichaetial leaves oblong at base, suddenly narrowed to a lanceolate acumen, upper margins long ciliate. Setae reddish brown to yellowish brown, 3–5 cm long, smooth; capsules cylindrical, horizontal, reddish brown to yellowish brown, 3–4 mm long; opercula conic; exostome teeth lanceolate 0.5–0.6 mm long, yellowish brown to reddish brown, trabeculate at base, finely papillose above; endostome segments yellowish brown, as long as the teeth; membrane 1/2 the segment height, minutely papillose; cilia hyaline, 2–3. Calyptrae cucullate, smooth. Spores rounded, 10–15 µm in diameter, minutely papillose.

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1. Stem leaves broadly cordate, with short apex, multiplicate; margins irregularly grossly dentate or setulosely serrate; leaf cells mostly linear, smooth.................................................................... 1. B. brevifolia
1. Stem leaves broadly ovate, with long lanceolate apex, somewhat plicate; margins entire, papillose; leaf cells mostly oblong-oval, setulosely unipapillose.................................................................. 2. B. molkenboeri


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