Coll. 2005-02-19
© M. Trappe | | | | | |
Barssia oregonensis Gilkey, Mycologia, 17 (6): 254 (1925).
Basionym Barssia oregonensis Gilkey, Mycologia, 17 (6): 254 (1925).
Diagnosis Ascocarp reddish-yellow, 1-2.5 cm. in diameter, somewhat lobed, more or less flattened, with an apical depression forming an irregular cavity within the ascocarp; surface scabrous to verrucose; cortex mostly consisting of coarse hyphae, these sometimes uniting near the surface to form irregular pseudoparenchyma, swollen tips of the hyphae sometimes projecting from the surface as in Hydnotryopsis; gleba penetrated by empty unconnected chambers and canals with hymenium-covered walls, opening into the depression of the ascocarp; hymenium consisting of regularly arranged asci and paraphyses; asci mostly cylindrical, sometimes club-chapes, 20-30 × 170 µ; paraphyses very slender, not swollen at the tips, extending 40-50 µ beyond the tips of asci; spores smooth, hyaline, ellipsoid, 15 × 26 µ. (Plate 26, fig. 5,6.)
In earth one to three inches deep under leaf mold beneath tree of Cascara sagrada, Benton County, Oregon, H.P. Barss, No. 4834, Apr. 26, 1925. O.A.C. Mycological Herbarium.
Type ex herb. Gilkey no. 4834 (OSC) - holotypus
MycoBank 182539
Literature
Gilkey H.M. 1925. Five new hypogaeous fungi. Mycologia, 17 (6): 250-254.
Gilkey H.M. 1939. Tuberales of North America. Oregon State Monographs, Studies in Botany, 1: 1-63.
Hunt G.A., Trappe J.M. 1987. Seasonal hypogeous sporocarp production in a western Oregon Douglas-fir stand. Canadian Journal of Botany, 65: 438-445.
Kimbrough J.W., Li L.T., Wu C.G. 1996. Ultrastructural Evidence for the Placement of the Truffle Barssia in the Helvellaceae (Pezizales). Mycologia, 88 (1): 38-46.
Classification: Helvellaceae, Barssia
Created on 02/07/2015.
Updated on 03/08/2023.
