Five Novel Freshwater Ascomycetes Indicate High Undiscovered Diversity in Lotic Habitats in Thailand

An investigation of freshwater fungi in Thailand resulted in the collection of one new monotypic genus, Neoxylomyces, and a novel species each in Camposporium, Brunneofusispora, Rattania, Neoxylomyces, and Phaeoacremonium. Camposporium dulciaquae resembles C. septatum in conidial morphology and number of septa but differs in conidial sizes. Brunneofusispora hyalina is similar to B. sinensis in conidiogenesis and conidial shape but differs in the sizes of conidiomata and conidiogenous cells. Rattania aquatica is the second species in Rattania, while Phaeoacremonium thailandense is the third species recorded from freshwater habitats. A new genus, Neoxylomyces, typified by N. multiseptatus, is similar to Xylomyces giganteus, but differs in the number of septa, chlamydospore measurements, and absence of a mucilaginous coating around the chlamydospores. These novel taxa form an independent lineage distinct from other species based on multi-loci phylogenetic analyses. Descriptions, illustrations, and notes are provided for each taxon. These new freshwater ascomycetes add to the increasing number of fungi known from Thailand and it is now evident that there are numerous novel taxa awaiting to be described as new freshwater habitats are explored. An update of newly discovered taxa in the widely studied freshwater habitats of Thailand over the last five years is also provided.

Freshwater Ascomyctes from Pachmarhi Biosphere Reserve (M.P., India)-II

The present paper deals with 6 species of freshwater Ascomycetes from Pachmarhi Biosphere reserve (M.P.). These include viz. Caryospora putaminum, Natantispora retorquens, Neomassariosphaeria typhicola, Panorbis viscosus, Savoryella aquatica, S. fusiformis, These fungi were encountered on decaying submerged wood samples. Some of these Ascomycetes are being recorded for the first time from Madhya Pradesh. The data provide information on the distribution of these fungi in India, apart from description and illustrations. The taxonomy, morphology and ecology of these fungi are discussed