A NEW, HETEROTHALLIC SPECIES OF SORDARIA

Abstract

O live , L. S., and A. A. F antini . (Columbia U., New York, N. Y.) A new, heterothallic species of Sordaria. Amer. Jour. Bot. 48(2): 124–128. Illus. 1961.— S. brevicollis , sp. nov., was isolated from zebra dung from the New York Zoological Park. It is the only species of the genus that has been found to be heterothallic and to have microconidia. The latter function readily in fertilization. Heterothallism is controlled by a single allelic pair of compatibility factors located about 14.2 crossover units from the centromere. Incomplete mating reactions involving this species, Gelasinospora autosteira , and Neurospora crassa indicate relationships among these 3 genera.