钱币石韦 qian bi shi wei

Acrostichum nummulariifolium Swartz, Syn. Fil. 191, 419. 1806; A. obovatum Blume; Cyclophorus nummulariifolius (Swartz) C. Christensen; C. nummulariifolius var. obovatus (Blume) Bonaparte; C. nummulariifolius var. rufus Alderwerelt; C. obovatus (Blume) Alderwerelt; Galeoglossa nummulariifolia (Swartz) C. Presl; G. obovata (Blume) C. Presl; Gymnopteris nummulariifolia (Swartz) C. Presl; Niphobolus nummulariifolius (Swartz) J. Smith; N. obovatus (Blume) Kunze; Polypodium nummulariifolium (Swartz) Mettenius; P. obovatum (Blume) Mettenius; Pyrrosia nummulariifolia var. rufa (Alderwerelt) Ching; P. obovata (Blume) Ching.

Plants small, 2-7 cm tall. Rhizome long creeping, 0.6-1.6 mm in diam., in cross section sometimes with a single, central sclerenchyma strand; phyllopodia 0.5-1.5 cm apart, lateral buds between or opposite to phyllopodia. Scales peltate, 3.3-5.7 × 0.3-0.7 mm, base entire to ciliate; acumen light brown, ciliate; short, ± orbicular to ovate scales regularly present. Fronds strongly dimorphic, distinctly to indistinctly stipitate. Sterile fronds: ± sessile or up to 2 cm stipitate; lamina elliptic to ovate, 1.5-2 × 1.2-1.5 cm, base cordate to rounded or occasionally cuneate, apex rounded. Fertile fronds: stipe up to 2.5 cm; lamina elliptic to obovate, 5-7 × 0.3-1.1 cm, base cuneate to gradually attenuate. Hydathodes absent. Indument persistent, dimorphic, dense, brown, lower layer mostly whitish; upper layer composed of hairs 0.7-1.4 mm in diam., with erect-spreading, acicular rays, usually distinctly raised above a lower layer with mainly woolly rays. Sori superficial, without central bundle of paraphyses. Sporangia with stalks 1-1.5 × as long as capsule.

On rocks; 400-1100 m. Yunnan [Bhutan, India, Indonesia, Myanmar, Philippines, Thailand].