Curcuma kakchingense (Zingiberaceae), a new species from northeast India

Curcuma kakchingense Bidyaleima, Kishor & Sharma, a new species of
Curcuma subg. Curcuma (Zingiberaceae) from Manipur, Northeast India is
described and illustrated. The species has close resemblance to C.
phrayawan and C. longa but is distinguished by having
lemon-yellow-coloured rhizomes with a very bitter taste, glabrous dark
reddish-brown bladeless sheaths, reddish-brown petiole fading towards the
edges, densely pubescent coma and upper fertile bracts on both surfaces
with mucronate tip, broadly ovate bracteole, elongated and revolute apex
of the middle lobe of the labellum and stigma protruding through the
anther lobes. The chromosome number is established as 2n = 3x = 63.