Campylospora leptosoma sp nov and characteristics of Campylospora spp., based on morphology and on ITS sequences

Campylospora leptosoma is described as new species. C. filicladia and C. parvula are lectotypified, epitypes of C. filicladia and C. parvula are established. ITS-based phylogenetic analysis of 18 isolates of four species of Campylospora confirms monophyly of the genus. Delimitation of C. chaetocladia, C. filicladia and C. parvula based on morphology is supported by phylogenetic analysis. C. leptosoma, although morphologically homogeneous, falls into two groups: one forms a well supported sister clade of C. parvula, the other an unsupported sister clade of C. chaetocladia.