Taxonomical study on lichenized fungi genus Sarcographa from China

Abstract

The lichenized fungi genus Sarcographa belongs to Graphidaceae, Ostropales, Lecanoromycetes, Ascomycota, Fungi. It is characterized by radial apothecia, strongly branched and immersed in stromata, 8-spored asci, transversely septate or submuriform ascospores, and tropical and subtropical distribution. Based on the methods of morphology, anatomy, chemistry and molecular biology, nine species of Sarcographa in China are reported. The new combination Sarcographa flavescens (Dal-Forno & Eliasaro) L. W. Chen & Z. F. Jia, comb. nov. is proposed for Phaeographis flavescens Dal-Forno & Eliasaro, and Sarcographa labyrinthica (Ach.) Müll. Arg. is a new record to Chinesee mainland. Sarcographina heterospora (Nyl.) Z. F. Jia & Lücking, a species of allies genus Sarcographina is described, and a brief description to each known species and discussions with their similar species are given. A key to the known species of Sarcographa (incl. Sarcographina) in China is also shown. The study provides basic information for the biodiversity of lichenized fungi in China.

Keywords

• lecanoromycetes
• ostropales
• graphidaceae
• sarcographina
• taxonomy