Aderkomyces sikkimensis

Aderkomyces sikkimensis is a species of foliicolous crustose lichen in the family Gomphillaceae. Found in India, it was formally described as a new species in 2006 by Athokpam Pinokiyo, Krishna Pal Singh, and Robert Lücking. The type specimen was collected by the first author from a subtropical forest near Damthang. It has also been recorded from the Darjeeling district of West Bengal. The specific epithet refers to the region of the type locality.
The lichen has a thin grey thallus that is continuous in its central area but dispersed in the peripheries; it measures across. The photobiont partner is a species of Chlorococcaceae with greenish, rounded cells measuring 8–14 μm in diameter. The ascospores of Aderkomyces sikkimensis are muriform, oblong to ellipsoid in shape, and measure 28–40 by 15–26 μm.