title: Rhynchostomatoid fungi occurring on Proteaceae.
abstract: A new ascomycete fungus, with long-necked perithecia having central ostioles and striate ascospores, was isolated from flowerheads of Protea burchellii and P. laurifolia in South Africa and is described here as Rhynchostoma proteae sp. nov. Sequence data obtained from the small-subunit ribosomal DNA (SSU nrDNA) place this fungus with 100% bootstrap support in a clade containing the type species of Rhynchostoma, R. minutum. A similar fungus with verruculose ascospores also was observed on a member of the Proteaceae from Australia, Lomatia polymorpha, which is described here as Rhynchomeliola lomatiae sp. nov. These two species are illustrated and contrasted with a third species from Proteaceae, Rhynchomeliola australiense, known from Grevillea in Australia.
authors.affiliation: Department of Plant Pathology, University of Stellenbosch, Private Bag X1, Stellenbosch 7602, South Africa.
authors.forename: Seonju
authors.initials: S
authors.lastname: Lee
authors.forename: J Z Ewald
authors.initials: JZ
authors.lastname: Groenewald
authors.forename: Joanne E
authors.initials: JE
authors.lastname: Taylor
authors.forename: Francois
authors.initials: F
authors.lastname: Roets
authors.forename: Pedro W
authors.initials: PW
authors.lastname: Crous