A KEY TO THE LICHEN GENUS PYRENULA FROM INDIA, WITH NOMENCLATURAL NOTES

The paper enumerates 78 species of Pyrenula so far known from India. P yrenula himalayana Upreti and P. subochraceoflavens Upreti are describ ed as new to science. The following new combinations and names are pro posed: Pyrenula anamaliensis, P. arthoniotheca, P. kamatakensis, P. le ucotrypa, P. mammillata, P. microcarpa, P. nanospora, P. pluricarpa, P . subandamanica, P. subindica, P. sublaevigata and P. suboligocarpa. P . mucularis (Zahlbr.) R.C. Harris and P. ochraceoflava (Nyl.) R.C. Har ris, are reported as new to India. Keys are provided for all the 78 sp ecies listed, and illustrations of different ascospore types of Pyrenu la are given.