Checklist of Plants of India

Collema flaccidum (Ach.) Ach., Lichenogr. Universalis 647. 1810; D. Awasthi, Beih. Nova Hedwigia 17: 46. 1965 & Comp. Macrolich. India, Nepal & Sri Lanka : 129. 2007; Degelius, Symb. Bot. Upsal. 20(2): 142. 1974; Akhtar & D. Awasthi, Biol. Mem. 5(1): 20. 1980.

Lichen flaccidus Ach., Kongl. Vetensk. Acad. Nya. Handl. 1795: 14. 1795.

India (Himachal Pradesh, Jammu & Kashmir, Manipur, Sikkim and Tamil Nadu); Africa, Asia, Australia, Europe, North America.