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FOC | Family List | FOC Vol. 2-3 | Polypodiaceae | Pyrrosia

26. Pyrrosia mannii (Giesenhagen) Ching, Bull. Chin. Bot. Soc. 1: 55. 1935.

蔓氏石韦 man shi shi wei

Niphobolus mannii Giesenhagen, Niphobolus, 107. 1901.

Plants 10-30 cm tall. Rhizome short, 2.6-3.3 mm in diam., in cross section with few to ca. 20 scattered sclerenchyma strands; phyllopodia contiguous, lateral buds basal on phyllopodia. Scales pseudopeltate, 5-7.4 × 0.5-1.2 mm, base entire; acumen straw-colored, entire to dentate. Fronds monomorphic, not or indistinctly up to 3 cm stipitate; lamina widest at or above middle, 15-30 × 1-2 cm, base gradually narrowed, apex acute to narrowly acuminate. Hydathodes distinct, sunken to ± superficial. Indument persistent, dimorphic, dense, brown; hairs (0.5-)0.8-2 mm in diam., with erect-spreading, acicular rays, ± mixed with hairs with mainly woolly rays. Sori superficial, without central bundle of paraphyses. Sporangia sessile.

On tree trunks, rotting wood, or rocks in forests; 1700-2300 m. Xizang, Yunnan [Bhutan, India, Myanmar, Nepal, Thailand].


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