Fungal Diversity 28: 69. 2008.
Common Name: none
Gregarious to caespitose on decaying coniferous wood and bark and on woody debris in soil; Sierra Nevada mountains, spring.
From the protologe by Perry & Pfister: "Chaetothiersia vernalis is characterized by the following combination of features: smooth, eguttulate, ellipsoid ascospores, brown, non-rooting, stiff superficial excipular and marginal hairs with obtuse apices; a dense medullary excipulum composed of textura intricata; a very thin ectal excipulum of globose to angular-globose cells; medium to rather large apothecia (relative to other members of Pyronemataceae); and growth on wood and woody debris associated with moisture produced by the Spring snowmelt in the High Sierra Nevada."
Etymology: "Chaeto", Latin for hairy, and "thiersia", in honor of Dr. Harry Thiers.
Beug, M.W., Bessette, A.E. & Bessette, A.R. (2014). Ascomycete Fungi of North America. University of Texas Press: Austin, TX. 488 p.
Desjardin, D.E., Wood, M.G. & Stevens, F.A. (2015). California Mushrooms: The Comprehensive Identification Guide. Timber Press: Portland, OR. 560 p.
Perry, B.A. & Pfister, D.H. (2008). Chaetothiersia vernalis, a new genus and species of Pyronemataceae (Ascomycota, Pezizales) from California. Fungal Diversity 28: 65-72. (PDF)