Tricholoma amyloideum G. Stev. 1964
Details
Tricholoma amyloideum G. Stev., Kew Bull. 19 15 (1964)
Nomenclature
G. Stev.
G. Stev.
1964
15
ICN
Tricholoma amyloideum G. Stev. 1964
species
Tricholoma amyloideum
Classification
Descriptions
Tricholoma amyloideum G. Stev. 1964
[GS] Pileus 4-6 cm. diam., luteous more or less covered with brownish-red (claret brown) fibrils, broadly convex at first, becoming plane to shallow concave; flesh yellow. Gills sinuate, moderately crowded, yellow becoming tinged brownish red. Stipe 4-7 x 1 cm., yellow overlain with a few reddish fibrils, smooth, striate, tending to split lengthwise, solid, with a conspicuous inferior membranous ring. Spores 7-8 x 4x5-6.5um, amyloid, hyaline, thinwalled (Fig. 1/27, p. 10); print white. Cuticle of loosely woven hyphae 10um diam., with clamp connections and internal pigment. A definite fishy smell develops in older specimens. HABITAT: under Nothofagus, Butterfly, 10.7.1949, Stevenson (type); Nelson, 12.7.1949, A. Crawford; Catchpole, 3.5.1958, Stevenson. [EH] This is the first record of the South American genus Porpdoma in New Zealand. [JAC] Pat commented that amyloid reaction in this material could not be seen in spores. However it is strong. The hymenium has occasional basidia with purple content in KOH, exactly like recent collections. Cheilocystidia are not as obvious as later collections, but not many gill edges are left in surviving material. Cap also with purple terminal elements in KOH, and clearly clamped.
Tricholoma amyloideum G. Stev. 1964
[Notes from Kew Type specimen, PRJ 2010] Kew images.
Tricholoma amyloideum G. Stev. 1964
Pileus 4-6 cm diam., luteous more or less covered with brownish-red (claret brown) fibrils, broadly convex at first, becoming plane to shallow concave; flesh yellow. Gills sinuate, moderately crowded, yellow becoming tinged brownish red. Stipe 4-7 x 1 cm, yellow overlain with a few reddish fibrils, smooth, striate, tending to split lengthwise, solid, with a conspicuous inferior membranous ring. Spores 7-8 x 4.5-6.5 µm, amyloid, hyaline, thin-walled (Fig. 27); print white. Cuticle of loosely woven hyphae 10 µm diam., with clamp connections and internal pigment. A definite fishy smell develops in older specimens.
Under Nothofagus, Butterfly, 10.7.1949, Stevenson (type); Nelson, 12.7.1949, A. Crawford, Catchpole, 3-5-1958, Stevenson.
Pileus 4-6 cm diam., luteus vel fibrillis brunneo-rubris plus minus obtectus, primum late convexus, deinde planus usque leviter concavus; came flava. Lamellae sinuosae, modice confertae, flavae deinde brunneo-rubro-tinctae. Stipes 4-7 x 1 cm, flavus, fibrillis paucis rubidis obductus, laevis, striatus, facile longitudinaliter fissus, solidus, annulo infero membranaceo conspicuo praeditus. Sporae 7-8 x 4.5-6.5 µm, amyloideae, hyalinae, parietibus tenuibus; in cumulo albae. Cuticula ex hyphis laxe intertextis 10 µm diam. sistens, cum fibrillis et pigmento interno. Specimina vetustiora saepe manifeste pisciodora.
Spores amyloid
Typus: Stevenson 713
Taxonomic concepts
Tricholoma amyloideum G. Stev. 1964
Tricholoma amyloideum G. Stev. (1964)
Global name resources
Metadata
1cb1b9a8-36b9-11d5-9548-00d0592d548c
scientific name
Names_Fungi
1 January 2000
26 June 1998