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Agrocybe semiorbicularis (Bull.) Fayod 1889
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Details
Nomenclature
Classification
Descriptions
Agrocybe semiorbicularis (Bull.) Fayod 1889
a. Broadly ellipsoid to ovoid basidiospores 10.5-14 x 7-8(-10) µm,
b. Basidia mostly 2-spored,
c. Absence of pleurocystidia and
d. Lageniform cheilocystidia with ± subcapitate head.
It is widespread on lawns and in grasslands. Details of the New Zealand collection are as follows;-
Basidiospores 14-16 x (8-)8.5-ll µm, ellipsoid-ovoid, medium ochraceous in water, darker in aqueous alkali, smooth; germ-pore distinct. Basidia 2-spored, a few 3- and 4-spored basidia seen, 25-30 x 7.5-10 µm. Cheilocystidia 20-30 x 5-7.5 µm, ampulliform with slightly swollen obtuse apex (3-5 µm broad); pleurocystidia absent. Caulocystidia subcapitate to slightly swollen at apex, 20-30 x 6-8 µm, apex 4-5 µm.