Leptogium verrucosum is a rare species of foliose lichen in the family Collemataceae.

Found in India, it was formally described as a new species in 2010 by Archana Dube and Urmila Vasudev Makhija.

The type specimen was collected from the walls of the Purandar fort (Maharashtra) at an elevation of 1,350 m (4,430 ft).

It has also been recorded growing on bark in moist shady locations.

[1] Characteristics of Leptogium patwardhanii include the numerous pycnidia that give the thallus a warty appearance, and the wrinkled upper and lower surfaces.