Doassansiaceae

They have parasitic hyphae with clamps, they are also teliosporic (have a thick-walled resting spore) and dimorphic (can be mold or yeasts) as well as not forming ballistoconidia (air discharged spores) in the haploid phase. The do not have haustoria (root-like structures).

When the family was originally created (by R. Bauer and Oberw. 1997), it had 7 genera (Burrillia, Doassansia, Heterodoassansia, Nannfeldtiomyces, Narasimhania, Pseudodoassansia and Tracya) and 36 species. Then Doassinga was added in 1998. Others were added after this date, such as Pseudodermatosorus in 1999.

Description

They have sori that develops on leaves, petioles and stems of plants, it is visible as pale green, yellowish or brownish lesions with spore balls as very small brown dots. The hyphae are intercellular and the spore balls are globose or irregular in shape and composed of a central mass of spores, with a missing central sterile region. They sometimes have sterile cells scattered around and sometimes have a sterile cortex. The teliospores are globose or irregularly faceted, hyaline or yellowish, smooth, thin walled, germinating to form a short hypha-like promycelium from which a cluster of basidiospores are produced towards an apex.