Checklist of Plants of India

Collema nigrescens (Huds) DC. in Lamarck & De Candolle, Fl. Franç., ed. 3, 2: 384. 1805; D. Awasthi, Beih. Nova Hedwigia 17: 46. 1965 & Comp. Macrolich. India, Nepal & Sri Lanka : 133. 2007; Degelius, Symb. Bot. Upsal. 13(2): 425. 1954; Akhtar & D. Awasthi, Biol. Mem. 5(1): 23. 1980.

India (Madhya Pradesh, Tamil Nadu and Uttarakhand), Canada, China; North Asia, Europe.