Open Access Open Access  Restricted Access Subscription or Fee Access


DOI: http://dx.doi.org/10.11646/phytotaxa.306.1.7

Rediscovery of Arisaema translucens (Araceae) and notes on A. tuberculatum, two strict endemics of Nilgiris, India

KONICKAL MAMBETTA PRABHUKUMAR, TARUN CHHABRA, ALOOR JOSE ROBI, RAVEENDRAN JAGADEESAN, CHANDRASSERIL NARAYANAN SUNIL, INDIRA BALACHANDRAN

Abstract


Genus Arisaema Martius (1831: 449) is represented by 215 taxa worldwide (Govaerts et al. 2017), of which 61 taxa are reported so far from India including two recent discoveries from Kerala and Tamil Nadu states of Western Ghats, viz. A. peerumedense J. Mathew in Mathew & George (2017: 29), A. madhuanum Nampy & Manudev in Manudev & Nampy (2014: 269) and A. gracilentum Bruggeman (2016: 87) from Arunachal Pradesh of North-East India. During extensive surveys in the Nilgiri Biosphere Reserve, Tamil Nadu, the authors came across two fascinating Arisaema species, one from Thia Shola and the second from Pennant’s Valley forest areas. The first species is attractive by means of its translucent spathe and the latter by its long caudate limb with a filiform thread. Detailed study of relevant literature (Fischer 1933, Fischer 1934, Gusman & Gusman 2002) confirmed their identity as A. translucens Fischer (1933: 344) and A. tuberculatum Fischer (1934: 167), respectively. Arisaema translucens is described by Fischer (1933) based on the collection from Thia Shola forests by E. Barnes at an elevation of 6000 ft made in 1932. From a thorough literature survey and herbarium consultations, it became apparent that this taxon had not been collected since 1932. Hence our discovery is a recollection of this species after a lapse of 84 years from its type locality. Detailed description, colour photographs and distribution information are provided based on the recent collections.

Keywords


Araceae, Arisaema, Nilgiri Biosphere Reserve, Rediscovery, Monocots

Full Text:

PDF/A (3MB)

References


Bruggeman, P. (2016) Arisaema gracilentum, a new species of Arisaema (Araceae) from NE India. Blumea 61: 87–89.
https://doi.org/10.3767/000651916X692177
Fischer, C.E.C. (1933) New or little known plants from South India II. Bulletin of Miscellaneous Information (Royal Botanic Gardens, Kew) 1933: 339–357.
https://doi.org/10.2307/4113562
Fischer, C.E.C. (1934) New or little known plants from South India III. Bulletin of Miscellaneous Information (Royal Botanic Gardens, Kew) 1934: 165–172.
https://doi.org/10.2307/4114296
Fischer, C.E.C. (1935) New or little known plants from South India IV. Bulletin of Miscellaneous Information (Royal Botanic Gardens, Kew) 1935: Errata slip opposite, 66 pp.
Govaerts, R., Bogner, J., Boos, J., Boyce, P., Cosgriff, B., Croat, T., Goncalaves, E., Grayum, M., Hay, A., Hetterscheid, W., Ittenbach, S., Landolt, E., Mayo, S., Murata, J., Nguyen, V.D., Sakuragui, C.M., Singh, Y., Thompson, S. & Zhu, G. (2017) World Checklist of Araceae. Facilitated by the Royal Botanic Gardens, Kew. Available from: http://apps.kew.org/wcsp/ (accessed 23 March 2017)
Manudev, K.M. & Nampy, S. (2014) Arisaema madhuanum, a new species of Araceae from India. Edinburgh Journal of Botany 71: 269–273.
https://doi.org/10.1017/S0960428614000109
Martius, C.F.P. (1831) U ber die Art der Befruchtung bei einigen Aroideen und u ber die Charakteristik mehrerer Gattungen dieser Familie. Flora. 14: 449–460.
Mathew, J. & George, K.V. (2017) Arisaema peerumedense (Araceae), a new species from South Western Ghats, India. Annales Botanici Fennici. 54: 29–31.
Nakai, T. (1929) Conspectus specierum Arisaematis Japono-Koreanarum. Botanical Magazine (Tokyo) 43: 524–540.
https://doi.org/10.15281/jplantres1887.43.524
Nayar, T.S., Rasiya, B.A. & Sibi, M. (2014) Flowering plants of the Western Ghats. Vol 2. Monocots. Tropical Botanical Garden Research Institute, Palode, Thiruvanathapuram, Kerala, 748 pp.
Gusman, G. & Gusman, L. (2002) The Genus Arisaema: A Monograph for Botanists and Nature Lovers. Timber Press. Portland, 450 pp.
Ramachandran, V.S. & Paulraj, S. (2008) Arisaema tuberculatum C. Fischer (Araceae) from Mukurthi National Park, Nilgiri Biosphere Reserve, Tamil Nadu, India-A note. Journal of Bombay Natural History Society 105: 228–229.
Sasidharan, N. (2004) Biodiversity documentation for Kerala. Part. 6: Flowering Plants. Kerala Forest Research Institute, Peechi, Kerala, 511 pp.
Sasidharan, N. (2013) Flowering plants of Kerala: CD-ROM ver 2.0. Kerala Forest Research Institute, Peechi
Schott, H.W. (1832) Araceae. In: Schott, H.W. & Endlicher, S. (Eds.) Meletemata Botanica. Vienna, pp. 16–22.
Sivadasan, M. (1999) Chronicles of Discoveries-The Pursuit of Plants In: Manoharan, T.M., Biju, S.D., Nayar, T.S. & Easa, P.S. (Eds.) Silent Valley-Whispers of Reasons. Kerala Forest Department, Thiruvananthapuram, pp. 145–174.
Thunberg, C.P. (1794) Botanical observations on the flora Japonica. Transactions of the Linnean Society of London 2: 326–342.
https://doi.org/10.1111/j.1096-3642.1794.tb00268.x


Refbacks

  • There are currently no refbacks.


ISSN 1179-3155 (print); ISSN 1179-3163 (online)

Published by Magnolia Press, Auckland, New Zealand