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Type: Article
Published: 2014-12-19
Page range: 232–244
Abstract views: 39
PDF downloaded: 1

New species and new records of thelotremoid Graphidaceae (Ascomycota: Ostropales) from Thailand

Department of Biology and Natural Medicinal Mushroom Museum, Faculty of Science, Mahasarakham University, Kantarawichai, Maha Sarakham Province, 44150 Thailand
Ossastrasse 6, D-12045 Berlin, Germany
Science & Education, Integrative Research Center and Collections Center, The Field Museum, 1400 South Lake Shore Drive, Chicago, Illinois 60605-2496, U.S.A.
Science & Education, Integrative Research Center and Collections Center, The Field Museum, 1400 South Lake Shore Drive, Chicago, Illinois 60605-2496, U.S.A.
Diversity south-east Asia Thelotremataceae

Abstract

Six new species of thelotremoid Graphidaceae are described from Thailand. Leucodecton confusum Papong, Mangold & Lücking has a densely corticate thallus and small, lepadinoid ascomata with double margin producing small, hyaline, submuriform ascospores. Ocellularia cerebriformis Papong, Lücking & Lumbsch is characterized by a brain-like, folded thallus surface, in combination with small, (sub-)muriform ascospores and protocetraric acid chemistry. Ocellularia kohphangangensis Papong, Mangold & Lücking features an unusual combination of small, brown, submuriform ascospores and the cinchonarum unknown chemistry. Ocellularia pseudopapillata Papong, Mangold & Lücking differs from O. papillata in the uneven-verrucose thallus, the thin, indistinctly fissured proper margin of the ascomata, and the carbonized columella. Ocellularia salazinica Papong, Mangold & Lücking is characterized by the presence of salazinic acid (a rare substance in Graphidaceae), in combination with ascomata resembling those of Rhabdodiscus, and comparatively large, muriform ascospores. A further species of Ocellularia, O. subdolichotata Papong, Mangold & Lumbsch, has a smooth, white thallus, prominent, columellate and carbonized ascomata, large, transversely septate ascospores (smaller than in O. dolichotata), and lacks secondary substances. The following 11 species are new records for Thailand: Chapsa discoides (Stirt.) Lücking, Glaucotrema glaucophaenum (Kremp.) Rivas Plata & Lumbsch, Leucodecton anamalaiense (Patw. & C. R. Kulk.) Rivas Plata & Lücking, Ocellularia fumosa (Ach.) Müll. Arg., O. granulifera (Kremp.) Müll. Arg., O. violacea Räsänen, O. viridipallens Müll. Arg., Rhabdodiscus subcavatus (Nyl.) Rivas Plata & Lumbsch, Stegobolus berkeleyanus Mont., Thelotrema defossum (Müll. Arg.) Mangold, and T. subadjectum Mangold.

How to Cite

PAPONG, KHWANRUAN BUTSATORN, ARMIN MANGOLD, ROBERT LÜCKING, and H. THORSTEN LUMBSCH. 2014. “New Species and New Records of Thelotremoid Graphidaceae (Ascomycota: Ostropales) from Thailand”. Phytotaxa 189 (1):232–244. https://doi.org/10.11646/phytotaxa.189.1.16.