Henry’s Rattan Calamus henryanus Becc. (Arecaceae), a new record to India

Abstract

While exploring the Barak valley of Assam, the rattan Calamus henryanus Becc. was collected from Cachar District which was found to be a new record to the Indian flora. Taxonomic study of the species along with photographs and other relevant information is provided in the present communication.

Diversity and distribution of palms (Arecaceae) in Assam, India

“…The family Arecaceae was excluded from the Flora of Assam (Kanjilal et al 1934(Kanjilal et al -1940. Detailed taxonomic studies on the family are still unavailable for Assam (Rao and Verma 1970, 1972, 1973, 1974and 1976Jain and Hajra 1975;Rahman 2007;Bora et al 2012;Mehmud and Roy 2020, 2020a, 2020b, 2020c. Renuka and Sreekumar (2012) reported 105 species belonging to 22 genera from India, whereas Barooah and Ahmed (2014) listed 36 species belonging to 18 genera from Assam.…”

Stem Anatomy of Three Species of Pinanga From Assam, India

“…The numbers of metaxylem vessels were found more than one in all the studied species. Interestingly the metaxylem vessels were also found more than one in Calamus meghalayensis Henderson in Assam (Mehmud & Roy, 2021a). Generally in India, the other members of this genus were represented by a single vessel (Mathew & Bhat, 1997;Renuka et al, 2010).…”

“…Except for P. gracilis, leaf morphologically of both P. griffithii and P. sylvestris are quite similar to each other. The importance of stem anatomical studies and their uses for ascertaining the identity of different palm species in India were conducted (Bhat, Nasser & Thulasidas, 1993;Mathew & Bhat, 1997;Mehmud & Roy, 2020a, 2020bRenuka, Bhat & Pandalai, 2010). This paper studies three species of Pinanga and observes the anatomical attributes of the stem that are used for their taxonomic determination.…”