New species of Graphidaceae (Ostropales, Lecanoromycetes) from southern Thailand

Abstract

Fourteen species of the lichen family Graphidaceae from southern Thailand are described as new, namely Creographa subbrasiliensis, which is similar to C. brasiliensis but without chemistry; Diorygma angusticarpum, which differs from D. hieroglyphicum by a I+ blue hymenium and lirellae with a slit-like disc; D. chumphonense, distinguished by its small, densely muriform ascospores and production of salazinic and norstictic acids; D. citri, distinguished by a I- hymenium and a complex chemistry including salazinic and hypostictic acids as major metabolites; D. conprotocetraricum, which is unique by its chemistry, i.e. conprotocetraric acid as a major substance; D. fuscopruinosum with a brown pruina on the disc of the apothecium and comparatively small ascospores; D. hieroglyphicellum, which is similar to D. hieroglyphicum but differs by much smaller ascospores; D. inexpectatum, which is distinguished by its chemistry (salazinic and hypostictic acids) and a I+ blue hymenium; D. salazinicum, separated from D. pruinosum by its rare chemistry (stictic and salazinic acids as ± major metabolites); D. subpruinosum, distinguished by often 2-spored asci and protocetraric and hypostictic acids as major constituents; D. thailandicum, which is similar to D. pruinosum, but differs by protocetraric and stictic acid as major metabolites; Graphis australosiamensis, distinguished by one muriform ascospore per ascus, a laterally carbonized exciple and norstictic acid in the thallus; Ocellularia palianensis, distinguished by small, transversely septate ascospores and by producing two unknown substances; and Platygramme microspora, which is distinguished by very small transseptate ascospores and producing stictic acid and its satellites.

Metabolomic Analysis of Two Parmotrema Lichens: P. robustum (Degel.) Hale and P. andinum (Mull. Arg.) Hale Using UHPLC-ESI-OT-MS-MS

“…Peaks 4, 8 and 13 were identified as conzalasinic acid derivatives based on both their pseudomolecular ions and daughter ions. Conprotocetraric acid [ 35 ] was at peak 5 (molecular anion at m / z 375.0724) and their fragmentation produced ions at m / z 357.0610, 313.0722, 295.0618 and 251.0710. Peak 17, with a [M − H] − ion at m / z 401.0516, was identified as a constictic acid derivative.…”

Three new species of thelotremoid lichens (lichenized Ascomycota: Ostropales) with 15 new records of lichenized fungi from Thailand and a worldwide key to species of the genus Ampliotrema

“…For over a century, numerous scientific expeditions have been conducted to explore the diversity of lichens throughout Thailand, with the first publication in 1909 by Vainio documenting 95 species (Vainio 1909). Since then, both international and Thai lichenologists have made significant contributions (Paulson 1930; Homchantara & Coppins 2002; Wolseley et al 2002; Aptroot et al 2007; Papong & Lumbsch 2011; Sutjaritturakan et al 2014; Mongkolsuk et al 2015). The information gathered from these studies was compiled into a checklist by Buaruang et al (2017) with 1297 species.…”

Diorygma tiantaiense sp. nov. and a Checklist and Key to Diorygma Species from China

“…Feuerstein et al (2014) described three new species and a revised world key which contained 52 species [4]. Subsequently, another species was described from tropical to subtropical distribution [5][6][7][8][9]. Wimalasena et al (2022) described the genus to include 77 species [10].…”