Hymenophyllum tenellum

Hymenophyllum tenellum D.Don, Prodr. Fl. Nepal.: 12 (1825). (syn: Hymenophyllum acrosorum Bosch ; Hymenophyllum alfredii Rosenst. ; Hymenophyllum badium Wall. ; Hymenophyllum blumeanum Spreng. ; Hymenophyllum coloratum A.Braun ex Bosch ; Hymenophyllum constrictum Hayata ; Hymenophyllum contiguum (D.A.Sm.) Tindale ; Hymenophyllum discosum Christ ; Hymenophyllum diversilabium (Copel.) C.V.Morton ; Hymenophyllum epiphyticum J.W.Moore ; Hymenophyllum fujisanense Nakai ; Hymenophyllum gracile Bory ex Willd. ; Hymenophyllum gracilius Copel. ; Hymenophyllum hayatae Masam. ; Hymenophyllum himalaianum Bosch ; Hymenophyllum integrum Bosch ; Hymenophyllum microsorum Bosch ; Hymenophyllum osmundoides Bosch ; Hymenophyllum paniculiflorum C.Presl ; Hymenophyllum parallelocarpum Hayata ; Hymenophyllum paramnioides (H.G.Zhou & W.M.Chu) X.C.Zhang ; Hymenophyllum pectinatum Nees & Blume ; Hymenophyllum polyanthos var. blumeanum (Spreng.) Bedd. ; Hymenophyllum polyanthos var. contiguum Croxall ; Hymenophyllum polyanthos var. minus Bedd. ; Hymenophyllum polyanthos var. reductum Jenman ; Hymenophyllum punctisorum Rosenst. ; Hymenophyllum sphaerocarpum Bosch ; Mecodium acrocarpum Ching ; Mecodium alfredii (Rosenst.) Copel. ; Mecodium blumeanum (Spreng.) B.K.Nayar & S.Kaur ; Mecodium contiguum D.A.Sm. ; Mecodium diversilabium Copel. ; Mecodium hainanense Ching ; Mecodium jinfoshanense Ching & Z.Y.Liu ; Mecodium kansuense Ching & Y.P.Hsu ; Mecodium likiangense Ching & Chiu ; Mecodium lofoushanense Ching & Chiu ; Mecodium lushanense Ching & Chiu ; Mecodium microsorum (Bosch) Ching ; Mecodium minus (Bedd.) S.Kaur & Subh.Chandra ; Mecodium osmundoides (Bosch) Ching ; Mecodium ovalifolium Ching & Chiu ; Mecodium paniculiflorum (C.Presl) Copel. ; Mecodium paramnioides H.G.Zhou & W.M.Chu ; Mecodium polyanthon var. blumeanum (Spreng.) N.C.Nair ; Mecodium szechuanense Ching & Chiu; Mecodium tenellum (D.Don) Sarn.Singh & Panigrahi; Mecodium wangii Ching & Chiu ; Mecodium wenhsienense Ching & Y.P.Hsu ; Sphaerocionium gracile C.Presl ; Trichomanes depauperatum Bory );

Tropical & Subtropical Asia to Pacific: Assam, Bismarck Archipelago, Borneo, Cambodia, Caroline Is., China North-Central, China South-Central, China Southeast, East Himalaya, Fiji, India, Japan, Jawa, Korea, Laos, Lesser Sunda Is., Malaya, Marquesas, Myanmar, Nansei-shoto, Nepal, New Guinea, Philippines, Queensland, Samoa, Society Is., Solomon Is., Sri Lanka, Sulawesi, Sumatera, Taiwan, Thailand, Tonga, Tubuai Is., Vanuatu, Vietnam, Wallis-Futuna Is., West Himalaya as per POWO;
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SK1201 14 JUNE 2018 : 6 posts by 2 authors. Attachments (4) – around 800 kb each.

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Some fern?

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I guess so …

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Hymenophyllum tenellum (“H. polyanthos” auct. Asiat.) very common to abundant throughout the Himalaya and has much polymorphic continuous variation in frond shape and degree of dissection.

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References:
POWO