Studies on the Bryopsida (Moss Flora) of the Kolli hills in the Eastern Ghats of Tamil Nadu, India
Cytological studies the genus Plantago L
Karyomorphological analysis on some taxa of the family Rubiaceae with special reference to Ixora and in vitro culture of some minor species of Umbellifereae
Eco-system studies on Bryophytes of Malabar wildlife sanctuary, Kerala
Taxonomic studies on Bryophytes of Anamudi Shola National park in the Western Ghats of Kerala
Systematic studies on the Bryophyte flora of Mathikettan shola national park, Kerala, India
