Marasmius masoniae G. Stev. 1964
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Descriptions
Marasmius masoniae G. Stev. 1964
Marasmius masoniae G. Stev. 1964
No fresh material available for study. Description of macroscopic features adapted from the protologue and from details observed on the dried holotype. Description of microscopic features derived from analysis of the holotype specimen.
Pi1eus 1-3 mm diam, convex to campanulate, rugulose-striate; surface dull, dry, glabrous; fawn, dried buff.- Lamellae adnexed to adnate, subdistant, non-collariate, narrow, concolorous with the pileus.- Stipe 10-15 x 0.2 mm, central, cylindrical, equal, wiry, glabrous, tough, insititious, brown to black; rhizomorphs absent.- Data on odor and taste unavailable.
Basidiospores 7.5-8.5(-9.0) x 4.0-5.0 µm, ellipsoid, smooth, thin-walled, hyaline, inamyloid.- Basidia 23-28 x 6-7 µm , clavate, 4-spored.- Basidioles fusoid.- Cheilocystidia scattered, uncommon, like the pileipellis terminal cells.- Pleurocystidia absent.- Pileipellis a Rameales-structure with diverticulate terminal cells; main body of terminal cells 6-16 x 3-8 µm, poorly developed, subcylindrical to irregular in outline, rarely broadly clavate, often lobed, hyaline, thin-walled, non-gelatinous; diverticula 1.5-6.5(-8.0) x 1.0-1.5 µm, dense, erect, cylindrical to subconic, hyaline, thin-walled to thick-walled.- Pileal and lamellar trama hyphae non-incrusted, non-gelatinous, inamyloid, Stipe tissue monomitic; cortical hyphae 3-6 µm diam, cylindrical, brown, roughened with pigment incrustations, dextrinoid.- Caulocystidia absent.-Clamp connections present.