Two new species of Hohenbuehelia from Argentina

Abstract

During a revision of the genus Hohenbuehelia in Argentina, two new species were found: H. austrocedri from the province of Chubut, and H. minutissima from the province of Buenos Aires. Both belong to subgenus Hohenbuehelia section Nigricans. In the present paper we describe and illustrate the two new species and compare them with H. singeri, H. nigra, H. bullulifera and H. unguicularis. In addition, we studied the holotype of H. pilitomaculoides, which we reduce to a synonym of H. nigra.