Aleuritopteris formosana (Hayata) Tagawa, Acta Phytotax. Geobot. 14(6): 191 1952. (Syn: Cheilanthes anceps var. brevifrons Khullar ; Cheilanthes brevifrons (Khullar) Khullar ; Cheilanthes formosana Hayata );
Indian Subcontinent to S. China and Indo-China, Taiwan to Philippines: Assam, China South-Central, China Southeast, East Himalaya, India, Nepal, Pakistan, Philippines, Taiwan, Thailand, Tibet, Vietnam, West Himalaya as per POWO (Hemionitis formosana (Hayata) Christenh.);
Distribution: Bhutan, India, Kashmir, Nepal, Pakistan, Philippines, Thailand (Flora of China)
Fern/ABNOV13 : 8 posts by 5 authors.
This fern has a propensity to curl as it ages. Found at the base of trees here, its silvery white side stands out against damp earth/bark.
Dal Lake, Above Mcleodganj, Dharamshala, HP
it is Cheilanthes sp
It’s Aleuritopteris formosana – it curls up when the dry season comes.
Ah yes, I should add – Aleuritopteris species were all called Cheilanthes previously, but since the big and diverse genus Cheilanthes has been revised since the 1970s and today, Aleuritopteris has generally been upheld
Thanks a lot … for providing correct name for the fern, this is very common and our B.Sc. students often collect this as one of their Herbarium specimens..
Aleuritopteris formosana ABJUL01/03 : 3 posts by 2 authors.
These fresh Aleuritopteris (formerly Cheilanthus) are emerging now and would curl up to show their whites underneath in October after the monsoons. Here are a couple of photos from the day before.
Aleuritopteris formosana (Cheilanthus species formerly)
Above Mcleodganj, Dharamshala, HP
29 June 2015.
Apologies for misspelling Cheilanthes as Cheilanthus.
Aleuritopteris formosana ABFEB2017/03 : 3 posts by 3 authors.
This is the other Aleuritopteris here with pinnae more finely divided. Here is s reply from Dr Fraser-Jenkins.
“Yes, it’s formosana all right, fairly typical, wrinkled top surface, lamina not widest at the base, scales go up stipe and onto rachis“
Above Mcleodganj, HP 1800m 01 February 2017
Fern for ID : 280711 : AK-2:
This should be Silver fern, Chelianthes argenta.
if back side of leaves is silver in colour & strm is maroon black nelu
This is indeed an Aleuritopteris species (Cheilanthes in a wide sense), and to identify species of this fairly complex genus one needs to see the scales on the underneath of the stipe and rachis, which are not visible in this photo. In addition this is a very immature or baby plant, not full size and not of adult-type morphology, and this again makes it more difficult to identify. If I had the specimen in hand so I could see the scales and the underneath I could probably make a definite determination, but from this photo alone it is going to have to be a bit of an approximation! I find very often that because people don’t necessarily know what features one has to show, for each individual genus, photos are sent to me that are frequently quite inadequate.
Cheilanthes bullosa – but it is in young stage
My apologies that once again I am unfortunately obliged to be doubtful of that identification as C./A. bullosa. While A. bullosa is one of the species that does have a bullulate upper surface, as I mentioned, it is not known (that is from a compendium of c. 100 herbaria holding Indian collections that I studied for monographic revision work on this genus) from as far north as Mahabaleshwar. It occurs from Karnataka southwards- only in the southern part of the Western and Eastern Ghats.