Phylogeny and Morphology of Novel Species and New Collections Related to Sarcoscyphaceae ( Pezizales , Ascomycota ) from Southwestern China and Thailand.

Sarcoscyphaceae ( Pezizales ) is distinguished by small to large, vividly-coloured sessile to stipitate apothecia, plurinucleate and pigmented paraphyses, operculate asci with thick walls, and plurinucleate, uniguttulate to multiguttulate ascospores with smooth walls or ornamentations. We collected more than 40 Sarcoscyphaceae specimens from dead twigs or wood. Based on morphology and phylogeny, these species belong to Cookeina , Nanoscypha , Phillipsia , Pithya , and Sarcoscypha . Among these, we introduce three new species- Nanoscypha aequispora , Pithya villosa , and Sarcoscypha longitudinalis . Phylogenetic analyses based on ITS, LSU, SSU, rpb2 , and tef-1α gene regions indicate the relationships of these species within Sarcoscyphaceae . Meanwhile, we propose Ph. gelatinosa as a synonym of Ph. domingensis . One new record of C. sinensis is reported from Thailand.