THREE NEW SPECIES OF BOTRYOTINIA ON RANUNCULACEAE

Abstract

Three new species of Botryotinia on Caltha palustris L., Ranunculus septentrionalis Poir., and Ficaria verna Huds. (Ranunculaceae) are described as B. calthae Hennebert and Elliott, B. ranunculi Hennebert and Groves, and B. ficariarum Hennebert. Each of the three species has a Botrytis state of the B. cinerea complex, and they thus constitute additions to the species already segregated from that complex, i.e. Botryotinia fuckeliana, B. convoluta, B. draytoni, and B. pelargonii. The Botrytis state of B. ficariarum can be distinguished morphologically.While B. ranunculi is a North American species and B. ficariarum an European one, B. calthae is reported from both continents.