title: A New Species of Graphis and New Lichen Records from Vietnam, Including a Second Worldwide Report of Sarcographina cyclospora.
abstract: Graphis upretii is a new lichen species discovered in Vietnam. The species is characterized by a loosely corticate, rough, whitish grey to greyish green thallus, elongate and irregularly branched lirellae with an apically thin complete thalline margin (negrosina morph), laterally carbonized, entire proper exciple, clear hymenium, hyaline, 16~20 transversely locular ascospores, and about 50~95 × 10~15 µm in size. In addition, members of the taxon produce norstictic and stictic acids. Currently, the lichen flora of Vietnam include Arthonia radiata, Brigantiaea tricolor, Coenogonium implexum, Dirina paradoxa, Herpothallon sipmanii, Pertusaria pertusa, and Sarcographina cyclospora.
authors.affiliation: Korean Lichen Research Institute, Sunchon National University, Suncheon 540-950, Korea.
authors.forename: Santosh
authors.initials: S
authors.lastname: Joshi
authors.affiliation: Korean Lichen Research Institute, Sunchon National University, Suncheon 540-950, Korea.
authors.forename: Udeni
authors.initials: U
authors.lastname: Jayalal
authors.affiliation: Korean Lichen Research Institute, Sunchon National University, Suncheon 540-950, Korea.
authors.forename: Soon-Ok
authors.initials: SO
authors.lastname: Oh
authors.affiliation: Department of Basic Biology, Faculty of Natural Science and Technology, Tay Nguyen University, 567 Le Duan, Buon Ma Thuot, Vietnam.
authors.forename: Thi Thuy
authors.initials: TT
authors.lastname: Nguyen
authors.affiliation: Department of Basic Biology, Faculty of Natural Science and Technology, Tay Nguyen University, 567 Le Duan, Buon Ma Thuot, Vietnam.
authors.forename: Nguyen Anh
authors.initials: NA
authors.lastname: Dzung
authors.affiliation: Korean Lichen Research Institute, Sunchon National University, Suncheon 540-950, Korea. ; School of the Environment, Faculty of Science and Engineering, Flinders University, Adelaide 5001, South Australia.
authors.forename: Jae-Seoun
authors.initials: JS
authors.lastname: Hur
keywords: Corticolous; Dak Lak Province; Graphidaceae; Mt. Doi Sao; New species; Norstictic acid; Taxonomy