Tropical Plant Research
An International Journal by Society for Tropical Plant Research
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2017, VOLUME 4 ISSUE 1Pages: 77-80
Eleocharis atropurpurea (Retz.) J. Presl & C. Presl and Eleocharis acutangula (Roxb.) Schult. (Cyperaceae): Two new distributional records for Andaman and Nicobar Islands, India
Sanjay Mishra*, Vivek C. P., Gautam Anuj Ekka and Lal Ji Singh
*Botanical Survey of India, Andaman and Nicobar Regional Centre, Port Blair-744102, Andaman and Nicobar, India
Abstract:
Eleocharis R.Br. is a cosmopolitan genus of the family Cyperaceae which comprises about 200 species, distributed in tropical, subtropical, and temperate regions of the world (Gonzalez-Elizondo & Peterson 1997, Mabberley 2009). Prasad & Singh (2002) mentioned about 21 species of this genus from India. During field expedition for the project of Flora of Kyd, James and Pitman islands, the authors came across with interesting specimens of Eleocharis from water logged field in Shoal bay area of South Andaman. On Critical study, perusal of literature and consultation of the herbarium at PBL, the specimens were identified as Eleocharis atropurpurea (Retz.) J. Presl & C. Presl, and Eleocharis acutangula (Roxb.) Schult. A thorough scrutiny of the literature (Rao 1986, Lakshminarasimhan & Rao 1996, Mathew 1998, Pandey & Diwakar 2008, Murugan et al. 2016) revealed that Eleocharis atropurpurea (Retz.) J. Presl & C. Presl has so far not been reported from the Andaman and Nicobar Islands. Kamble (2013) mistakenly determined one Eleocharis specimen collected from Andaman (Mayur Y Kamble 30664) as Eleocharis acutangula (Roxb.) Schult. However, investigation on the particular specimen housed at PBL revealed that the specimen is actually of Eleocharis spiralis (Rottb.) Roem. & Schult. Hence, our collection of Eleocharis acutangula (Roxb.) Schult. from Shoal bay forms the first record of the species from the Andaman and Nicobar Islands.
Eleocharis R.Br. is a cosmopolitan genus of the family Cyperaceae which comprises about 200 species, distributed in tropical, subtropical, and temperate regions of the world (Gonzalez-Elizondo & Peterson 1997, Mabberley 2009). Prasad & Singh (2002) mentioned about 21 species of this genus from India. During field expedition for the project of Flora of Kyd, James and Pitman islands, the authors came across with interesting specimens of Eleocharis from water logged field in Shoal bay area of South Andaman. On Critical study, perusal of literature and consultation of the herbarium at PBL, the specimens were identified as Eleocharis atropurpurea (Retz.) J. Presl & C. Presl, and Eleocharis acutangula (Roxb.) Schult. A thorough scrutiny of the literature (Rao 1986, Lakshminarasimhan & Rao 1996, Mathew 1998, Pandey & Diwakar 2008, Murugan et al. 2016) revealed that Eleocharis atropurpurea (Retz.) J. Presl & C. Presl has so far not been reported from the Andaman and Nicobar Islands. Kamble (2013) mistakenly determined one Eleocharis specimen collected from Andaman (Mayur Y Kamble 30664) as Eleocharis acutangula (Roxb.) Schult. However, investigation on the particular specimen housed at PBL revealed that the specimen is actually of Eleocharis spiralis (Rottb.) Roem. & Schult. Hence, our collection of Eleocharis acutangula (Roxb.) Schult. from Shoal bay forms the first record of the species from the Andaman and Nicobar Islands.
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