Thursday, April 6, 2017

[Botany • 2017] Impatiens tatoensis • A New Species (Balsaminaceae) from Arunachal Pradesh, Northeast India and Notes on Lectotypification of the Name I. spirifera Hook.f. & Thomson


Impatiens tatoensis  Gogoi & W.Adamowski


Abstract

Impatiens tatoensis Gogoi & W.Adamowski, a new species from Northeast India with affinities to I. spirifera Hook.f. & Thomson is described and illustrated. We provide a lectotypification for the name Impatiens spirifera Hook.f. & Thomson as well as a description and illustrations of the species.

Keywords: Impatiens, Balsaminaceae, New species, Arunachal Pradesh



Impatiens tatoensis Gogoi & W.Adamowski sp. nov.

Habitat and Ecology: Impatiens tatoensis is endemic to West Siang district of Arunachal Pradesh. It grows at an altitude of c. 1800 m above sea level, in the margin of moist evergreen subtropical forest along with Polygonum chinense L., Pilea sp., and Elatostema sp. 

Etymology: The species epithet denotes the type locality of Tato of West Siang, Arunachal Pradesh.

Fig. 2. Impatiens tatoensis:
A, habit; B, flower lateral view; C, flower dorsal view; D, flower bud lateral view; E, bract; F, lateral sepals; G, dorsal petal lateral view; H, dorsal petal dorsal view; I, lateral petals ventral view; J, lateral petals dorsal view; K, lower sepal; L, stamens; M, capsule; N, seeds (scale in mm). Images by R. Gogoi (R. Gogoi 30536). 

Rajib Gogoi, Souravjyoti Borah and Wojciech Adamowski. 2017. Impatiens tatoensis (Balsaminaceae): A New Species from Arunachal Pradesh, Northeast India and Notes on Lectotypification of the Name I. spirifera Hook.f. & Thomson.  Telopea. 20; 21-27. DOI: 10.7751/telopea11012


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