New species of Mycovellosiella associated with foliar spots in Nepal

New species of Passalora (cercosporoid hyphomycete) from Western Ghats, India.

“…However, the present collection is comparable with related taxa earlier described from Euphorbiaceae. Passalora macarangae is distinct from Mycovellosiella malloti Kharwar et al (1996) The taxonomic status of Mycovellosiella malloti and M. bridelliae is considered 'unclear' by Crous and Braun (2003) and both have been excluded from the list of Passalora. Mycovellosiella subhyalina, which should be reduced to synonymy with a Passalora species, keeps its original status.…”

Mycovellosiella robbsii sp. nov. causing leaf-spot on Mimosa caesalpiniaefolia

“…M. robbsii differs from all those species by having a combination of characteristics common to cercosporoids placed in the genus Mycovellosiella, particularly the presence of external mycelium, conidia in (Winter) U. Braun. Mycovellosiella rosea was inaccurately included on this list, as Braun (1995) catenulate 5-6.5 ìm wide conidia (Kharwar et al 1996). Mycovellosiella mucunae has smaller stromata (10.5-16.0 ìm diam.)…”

“…Mycovellosiella mucunae has smaller stromata (10.5-16.0 ìm diam.) than those of M. robbsii and only forms unbranched chains of conidia (Kharwar et al 1996). Mycovellosiella passaloroides has shorter and narrower conidia (up to 70 ìm long 3.5-5 ìm wide) which are only up to three septates (Bai & Cheng, 1992).…”