In this article we will discuss about the features and classification of heterobasidiomycetidae. Diagnostic Features of Heterobasidiomycetidae: (i) Lack dolipore septa and clamp connections. Recently, however, clamp connections have been recorded in many species. (ii) Formation of thick-walled binucleate spores known as the teleutospores. (iii) Basidium partitioned transversely or longitudinally into two, three or four […]