Schismatomma galactinum (Lichenized Ascomycota), a Lichen Species New to India

The lichen family Roccellaceae is represented by 48 genera and about 200 species in the world, of which 56 species under 18 genera are known to occur in India. This family consists of mostly microlichens, with the genus Roccella, being the most prominent macrolichen in the group. Genus Schismatomma is an important microlichen of family Roccellaceae. Among the 11 species of Schismatomma known from the world, India is represented by four species, namely Schismatomma atomellum (Stirt.) Zahlbr., Schismatomma cinereum (Mull. Arg.) Zahlbr., Schismatomma gregantulum (Mull. Arg.) Zahlbr. and Schismatomma melastigmum (Nyl.) Zahlbr.