Bromus husainii, a new species of Poaceae collected from Valley of Flowers National Park, Uttarakhand, is described and illustrated. The new species is closely related to B. confinis in having similar rhizomatous habit and purple-tinged spikelets but differs by the characters of inflorescence with heteromorphic spikelets and a band of hairs present on its collar. Moreover, presence of robust spikelets make it different from other species of Bromus.
The present paper depicts an overview and elucidated assessment of published data and herbarium records on the diversity, distribution pattern, endemism and threat status of Dioscorea spp. to get availed with extant stature and design strategies for its effective conservation. Dioscorea nested under family Dioscoreceae is a pantropical genus comprising about 682 species. In India, the genus is known to possess 42 taxa (41 species and one variety). Dioscorea L. is highly regarded for its nutritional and medicinal values having a significant role in pharmaceutical and nutraceutical industries. Several species of Dioscorea contain various biologically active molecules that show anti-arthritic, anti-inflammatory and anti-fertility effects and thereby known for alleviating medicinal curses.
Calamagrostis nandadeviensis, a new species of Calamagrostis (Poaceae: Agrostidinae) from India (Valley of Flowers National Park of Uttarakhand and Rohtang Pass of Himachal Pradesh) is described and illustrated. C. nandadeviensis is morphologically allied to C. lahulensis and C. scabrescens but differs from them in having deeply bifid palea and fused lodicules. Data on distribution, habitat, biotic association are presented along with an illustration and comparative photo plate.
The present work is a critical assessment of published literature, herbarium records and field observations on the diversity, distribution and endemism in the tribe Andropogoneae belonging to the family Poaceae (Grasses) from Western Himalaya. A total of 33 genera with 113 species and one sub-species have been recorded from Western Himalaya. Maximum species diversity has been observed between an elevation of 1500 6 2000 m asl and the most diverse genus is Cymbopogon which is represented by 12 species and one sub-species. The tribe is of enormous economic potential and thereby needs documentation of its diversity and conservation status.
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