Friday, June 16, 2017

[Botany • 2017] Impatiens arunachalensis • A New Species (Balsaminaceae) from northeastern India

Impatiens arunachalensis 
Hareesh, A.Joe, M.Sabu & R.Gogoi


Impatiens arunachalensis, a new species of Impatiens is described from the Upper Siang district of Arunachal Pradesh, northeast India. Detailed descriptions, distribution, and discussion of ecology along with colour photographs are provided.

Keywords: Arunachal Pradesh, Balsaminaceae, Impatiens, India, new species, Siang, Eudicots

Impatiens arunachalensis Hareesh, A.Joe, M.Sabu & R.Gogoi sp. nov. 

The new species is similar to I. arguta but differs in having prominent ovate to ovate-elliptic leaves, pedunculate flowers, broadly orbicular dorsal petals without a horn; a pouch-shaped lower sepal, suddenly constricted straight spur with coiled or annular tip and notched apex, and recurved basal lobes of lateral united petals with reddish-brown blotches.

Etymology:— The specific epithet ‘arunachalensis’ references the name of the state where this species is found. 

Vadakkoot Sankaran Hareesh, Alfred Joe, Rajib Gogoi and Mamiyil Sabu. 2017.  Impatiens arunachalensis (Balsaminaceae), A New Species from northeastern India. Phytotaxa. 305(1); 47–51.  DOI: 10.11646/phytotaxa.305.1.7

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