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 );
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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.

Location: Sandakphu, India
Date: 13 May 2018
Altitude: 12000 ft.
Habit : Wild

Some fern?

I guess so …

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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Hymenophyllum from Arunashal Pradesh march 2024: 3 images.

Let’s continue with the ferns of my last indian trip this spring.
This time, I think I have a genus (well, not even sure of it).
Let’s go with the pictures, taken from the side of the road near the village of Sessa, at an elevation of around 1200m

Yes, Hymanophyllum. That’s Hymenophyllum tenellum, a close Asian relative of the American H. polyanthos. I know the Arunachal ferns well as my book on them is nearly complete now!

Thank you very much. It seems that Hymenophyllum tenellum is also present in the french island of La Réunion in southern Indian Ocean.
Is H. tenellum the only species of the genus in Arunachal ? I have another observation near Dirang.
I will post many pteridophytes from Arunashal as I have a few dozen unidentified ferns from this part of India. Tell me if it is too much for this group or if I should continue.

Pl. continue to post.

 

 

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References:
POWO