Hymenogaster macrosporus G. Cunn. 1934
Details
Hymenogaster macrosporus G. Cunn., Proc. Linn. Soc. New South Wales 59 171 (1934)
Nomenclature
G. Cunn.
G. Cunn.
1934
171
ICN
Hymenogaster macrosporus G. Cunn. 1934
species
Hymenogaster macrosporus
Classification
Descriptions
Hymenogaster macrosporus G. Cunn. 1934
VICTORIA. Melba Gully walking track, near Lavers Hill, hypogeal in wet eucalyptus forest, 24July 1982, K. & G. Beaton 49; Royston road near Rubicon, hypogeal under mixed scrub, 10 May 1983, K. & G. Beaton.
Gasterocarp 6-20 mm diam., irregularly globose to ovo-ellipsoid, with basal attachment. Peridium pale ochraceous to dull cream colour or greyish, smooth and glabrous. Gleba dark ferruginous brown, loculate, with small, irregular, empty chambers, 1-2 mm diam., without radial arrangement. Tramal plates thin, 40-160 µm thick, white, consisting of a narrow hymenophoral trama and well developed subhymenial layers; clamp-connexions present on all hyphae. Columella none; steriles base minute, whitish.
Spores 17-24 x 9-12 (19.5 ± 2 x 11 ± 1) µm (excl. orn.), Q = 1.77, limoniform with a protracted, obtusely rounded mucronate apex, golden brown, thick-walled, bearing a strongly reticulate exosporial ornamentation (-2 µm high), overlaid by a hyaline, disruptive myxosporium. Basidia 45-56 x 10.5 µm, cylindrico-subclavate, bearing two, straight sterigmata; also numerous short ellipsoid, immature basidia. Hymenophoral trama regular, narrow, with parallel, inflated, thin-walled hyphae, 2-25 µm wide, pseudoparenchymatous. Peridiopellis a thin epicutis, 15-30 µm thick, of agglutinated, thin-walled, hyaline hyphae, 2.5-6 µm diam.
Spores 17-24 x 9-12 (19.5 ± 2 x 11 ± 1) µm (excl. orn.), Q = 1.77, limoniform with a protracted, obtusely rounded mucronate apex, golden brown, thick-walled, bearing a strongly reticulate exosporial ornamentation (-2 µm high), overlaid by a hyaline, disruptive myxosporium. Basidia 45-56 x 10.5 µm, cylindrico-subclavate, bearing two, straight sterigmata; also numerous short ellipsoid, immature basidia. Hymenophoral trama regular, narrow, with parallel, inflated, thin-walled hyphae, 2-25 µm wide, pseudoparenchymatous. Peridiopellis a thin epicutis, 15-30 µm thick, of agglutinated, thin-walled, hyaline hyphae, 2.5-6 µm diam.
A hypogeal species growing in small clusters, either solitary or rarely confluent. The large, reticulately ornamented spores, exceeding 20 µm in length, easily distinguish this species
Taxonomic concepts
Hymenogaster macrosporus G. Cunn. 1934
Hymenogaster macrosporus G. Cunn. (1934)
Hymenogaster macrosporus G. Cunn. 1934
Hymenogaster macrosporus G. Cunn. (1934)
Global name resources
Collections
Notes
typification
Type Australia, Tasmania
Metadata
1cb18e08-36b9-11d5-9548-00d0592d548c
scientific name
Names_Fungi
1 January 2001
3 April 2013