On the identity and occurrence of Ophioglossum costatum (Pteridophyta: Ophioglossaceae) in Andhra Pradesh, India

Autor:	V.S. Raju, A. Ragan, S. Suthari, M.V. Ramana
Jazyk:	angličtina
Rok vydání:	2011
Předmět:	Ecology QH540-549.5 General. Including nature conservation geographical distribution QH1-199.5
Zdroj:	Journal of Threatened Taxa, Vol 3, Iss 1, Pp 1462-1464 (2011)
Druh dokumentu:	article
ISSN:	0974-7893 0974-7907
DOI:	10.11609/JoTT.o2568.1462-4
Popis:	Ophioglossum costatum (Ophioglossaceae) was collected for the first time from Telangana region and reported it as an addition to the fern flora of Andhra Pradesh, India. Ophioglossum costatum is a widespread pantropical species though not collected often owing to its distribution in small, undisturbed specific habitats, ephemeral nature (seasonality: monsoonal appearance) and misidentification with O. nudicaule in the herbarium (dugout and mounted specimens). The study stresses the significance of field characters for the correct identification of these rhizomatous geophytic cryptogams and brings out the differences between Ophioglossum costatum and O. nudicaule.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/66c1dd20c77044db88c663c200015c66 Zobrazit plný text záznamu View record in DOAJ