Two new Puccinia species on Melica (Poaceae) from USA

摘要

During a study of herbarium specimens of graminicolous rust fungi from the USA deposited in the Arthur Fungarium (PUR), two previously undescribed species infecting Melica spp. were encountered. Described as Puccinia melicae-porteri sp. nov. and P. goldsbroughii sp. nov., they are compared to similar rust fungi on Melica spp. from around the world. A key to the fourteen Puccinia species on Melica spp. is provided.