Pyrrosia porosa

Pyrrosia porosa (C. Presl) Hovenkamp, Blumea 30(1): 208 1984. (syn: Cyclophorus acrocarpus (Christ & Giesenh.) C.Chr.; Cyclophorus alcicornu Christ; Cyclophorus macrophyllus (Christ) C.Chr.; Cyclophorus malacophyllus (Christ) C.Chr.; Cyclophorus porosus (C.Presl) C.Presl; Cyclophorus schmidianus C.Presl; Cyclophorus sticticus (Kunze) C.Chr.; Cyclophorus xiphioides (Christ) C.Chr.; Niphobolus acrocarpus Christ & Giesenh.;Niphobolus fissus Bedd. (ambiguous synonym); Niphobolus porosus C.Presl; Niphobolus schmidianus Kunze; Niphobolus sticticus Kunze; Niphobolus sticticus var. major H.Christ;  Niphobolus xiphioides Christ; Polypodium fissum Bak. (ambiguous synonym); Polypodium macrophyllum Christ (ambiguous synonym); Polypodium mollissimum Christ (ambiguous synonym); Polypodium porosum (C.Presl) Mett.; Polypodium porosum Wall.; Polypodium sticticum (Kunze) Mett.; Pyrrosia mollis f. alcicornu (H.Christ) Ching; Pyrrosia mollis var. mollissima Ching; Pyrrosia porosa var. mollissima (Ching) K.H.Shing; Pyrrosia scolopendrina Ching; Pyrrosia stictica (Kunze) Holtt.);
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Indian Subcontinent to Japan and Indo-China, Philippines (Luzon): Assam, China South-Central, China Southeast, East Himalaya, Hainan, India, Japan, Laos, Myanmar, Nepal, Philippines, Sri Lanka, Taiwan, Thailand, Tibet, Vietnam, West Himalaya as per POWO;

China (Guangxi, Guizhou, Hainan, Sichuan, Yunnan), Taiwan, Tibet, Japan, Bhutan, Laos, Myanmar [Burma], Nepal, Philippines (Luzon), Sri Lanka, Vietnam, Jammu & Kashmir, India (Manipur, Himachal Pradesh, Uttarakhand, Sikkim, Darjeeling, Tamil Nadu, Kodaikanal, Nilgiri Hills, Kerala, S-India), Thailand as per Catalogue of Life;

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Epiphytes or lithophytes with erect rhizome, 2 x 2.5 cm. Scales 2-4 x 1-1.2 mm, peltate, ovate or lanceolate, acuminate, dark brown along the centre, paler, yellowish brown along the margins, ciliate. Fronds 15-20 x 1-2 cm, simple; stipe 2-2.5 densely scaly beneath, densely hispid with stellate hairs; lamina coriaceous, linear-lanceolate, acute or acuminate, cuneate at base, densely covered with stellate hairs; costa raised below, indistinct above; veins anastomosing, indistinct. Sori circular, dark brown, scattered in the distal half, on maturity looks like acrostichoid. Sporangial capsule 437.5 x 375 µm, subglobose, stalk 0.5 mm long, biseriate. Spores 100 x 70 mm, yellowish, ellipsoid, ovoid or reniform, planoconvex, granulose.

(Attributions- K. P. Rajesh as per India Biodiversity Portal)

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Pyrrosia penangiana (Hook.) Holttum SN26420a : 3 posts by 2 authors. Attachments (1)- 3 mb.
Pyrrosia penangiana (Hook.) Holttum(= Pyrrosia mollis (Kunze) Ching) epiphytic wild fern from Western Ghats Tamilnadu

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References:
POWO  Catalogue of Life  The Plant List Ver.1.1  Tropicos  IPNI  GBIF (High resolution specimens) Flora of China  FOC illustration  India Biodiversity Portal  Flora of peninsular India  Academia  Ferns of Thailand, Laos and Cambodia  Flora Malesiana  Botanical Collections  MNHN  Biolib  Phytoimages