1. Awasthi, D. D. .. “A note on Lichens from Simla,”Proc. 40th Ind. Sci. Congr. Abs. Pt. III, 1953, pp. 72–73.
2. ----- .. “Two new species ofCetraria from Eastern Nepal,”Proc. 41st Ind. Sci. Congr. Abs., Pt. III, 1954, p. 116.
3. ----- .. “A preliminary note on ‘Contributions to the Lichen flora of E. Nepal,”loc. cit., 1954, 117.
4. Höeg, O. A. .. “Notes on Flora and vegetation of the Spiti and Chandra Valley, N.W. Himalayas,”Proc. 40th Ind. Sci. Congr. Abs., Pt. III, 1953, 110–11