![Sample our Environment & Agriculture journals, sign in here to start your access, latest two full volumes FREE to you for 14 days]({"type":"image" , "src" : "/sda/5934/TOC-Subject-Sample-2021-Environment-Agriculture.jpg"})
Abstract
Goplana ribis-andicolae, Puccinia ponsae, P. promatensis, Uromyces siphocampyli-gigantei, Uredo cyclanthacearum, U. merremiae, and U. semidiscifera are described as new species. The ultrastructure of the urediniospore ornament of Uredo semidiscifera was studied. Uredo floridana revealed a one-layered pseudoparenchymatous uredinial peridium and D-haustoria with necks wrapped by a fold of the extrahaustorial membrane. It is therefore assigned to Melampsoraceae and probably belongs to the genus Pucciniastrum. Uredo polylepidis had a similar uredinial peridium and may belong also to the genus Pucciniastrum.