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Spiranthes himalayensis (Orchidaceae, Orchidoideae) a new species from Asia

Surveswaran, Siddharthan and Kumar, Pankaj and Sun, Mei (2017) Spiranthes himalayensis (Orchidaceae, Orchidoideae) a new species from Asia. In: PHYTOKEYS (89). pp. 115-128.

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Official URL: http://doi.org/10.3897/phytokeys.89.19978

Abstract

Spiranthes himalayensis is described here as a new species based primarily on molecular phylogenetic evidence followed by morphological comparison with other Asian Spiranthes species. It is distributed widely from southern India to tropical China. Phylogenetic analysis shows its close affinity to S. nivea which is endemic to Taiwan. Morphologically, the new species looks close to S. sinensis and S. hongkongensis. S. himalayensis is an allogamous species which can be differentiated from its allies on the basis of pubescent plant body, floral bract longer or of the same length as that of ovary, petals with blunt apex, labellum width around hypochile same as the width of epichile, epichile widely flabellate or semi-tunicate, column length equal to or more than 1.5mm, clavate operculum attached to the column on the broader part by an arm-like extension emerging from the upper part of column and a well developed rostellum partitioning the stigma and pollinarium.

Item Type: Journal Article
Additional Information: Copy right for this article belongs to the PENSOFT PUBL, 12 PROF GEORGI ZLATARSKI ST, SOFIA, 1700, BULGARIA
Department/Centre: Division of Biological Sciences > Centre for Ecological Sciences
Depositing User: Id for Latest eprints
Date Deposited: 07 Dec 2017 09:49
Last Modified: 07 Dec 2017 09:49
URI: http://eprints.iisc.ac.in/id/eprint/58389

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