This plant shows indeed the leaf shape of what used to be known as var. curvatum. Tortuosum with narrow, thicker leaflets can mostly be found at the Western part of its distribution range. More to the east the leaflets get wider and thinner with more pronounced veination (previously known as var. helleborifolium), most likely caused by environmental factors (more exposed and drier conditions versus moist and less exposed habitat). Because of the wide distribution, and therefore considerable variation with intermediate forms, both varieties based on these leaftypes currently are no longer recognized and all are synonymized under tortuosum.
Regards, Pascal From: J.M. Garg [mailto:[email protected]] Sent: zaterdag 30 augustus 2014 7:08 To: efloraofindia Cc: Nidhan Singh; Gurcharan Singh Subject: Fwd: [efloraofindia:196784] Araceae, Arecaceae and Zingiberaceae Fortnight: Araceae- Arisaema 10 for id from Chakrata:: NS Aug 10 Forwarding again for Id confirmation or otherwise please. Some earlier relevant feedback: Very narrow leaflets suggest A. tortuosum var. curvatum Dr. Gurcharan Singh ---------- Forwarded message ---------- From: Nidhan Singh <[email protected]> Date: 13 August 2014 21:17 Subject: [efloraofindia:196784] Araceae, Arecaceae and Zingiberaceae Fortnight: Araceae- Arisaema 10 for id from Chakrata:: NS Aug 10 To: indiantreepix <[email protected]> Dear All, I have a single image of this Arisaema..shot from Chakrata.. Posting for id please.. -- Regards, Dr. Nidhan Singh Assistant Professor Department of Botany I.B. (PG) College Panipat-132103 Haryana Ph.: 09416371227 -- You received this message because you are subscribed to the Google Groups "efloraofindia" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/indiantreepix. For more options, visit https://groups.google.com/d/optout. -- With regards, J.M.Garg 'Creating awareness of Indian Flora <http://en.wikipedia.org/wiki/User:Jmgarg1> & Fauna' The whole world uses my Image Resource <http://commons.wikimedia.org/wiki/Category:J.M.Garg> of more than a thousand species & eight thousand images of Birds, Butterflies, Plants etc. (arranged alphabetically & place-wise). You can also use them for free as per Creative Commons license attached with each image. For identification, learning, discussion & documentation of Indian Flora, please visit/ join our Efloraofindia Google e-group <https://groups.google.com/forum/#!forum/indiantreepix> (largest in the world- around 2380 members & 1,96,000 messages on 31/7/14) or <https://sites.google.com/site/efloraofindia/> Efloraofindia website (with a species database of more than 9500 species & 1,90,000 images). Winner of Wipro-NFS Sparrow Awards 2014 for efloraofindia <https://sites.google.com/site/efloraofindia/award-for-efloraofindia> . Also author of 'A Photoguide to the Birds of Kolkata & Common Birds of India'. -- You received this message because you are subscribed to the Google Groups "efloraofindia" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/indiantreepix. For more options, visit https://groups.google.com/d/optout.
