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Tricholoma ornaticeps G. Stev. 1964

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G. Stev.
G. Stev.
1964
17
ICN
Tricholoma ornaticeps G. Stev. 1964
species
Tricholoma ornaticeps
in mountain forest, [New Zealand], Waiopehu, 20.4.1947, E. Cone in Stevenson 237, Holotype K(M) 177251

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ornaticeps

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Tricholoma ornaticeps G. Stev. 1964

[GS] Pileus 7-8 cm. diam., ochraceous to saffron yellow thickly dotted with small brown fibrillose scales, convex with down-rolled margin becoming broadly concave; flesh creamy yellow continuous with that of stipe. Gills sinuate, moderately distant, yellow staining brown at edges. Stipe 3 x 1 cm., creamy above, ochraceous at base, fibrillose striate. Spores 8-8.5 x 4.5~5um non-amyloid, ovoid, moderately thin-walled (Fig. 1/32, p. 10); copious white spore print. Cuticle of loosely woven hyphae about 5um diam.; scales are coremia-like tufts of parallel hyphae 3-5um, diam., with thickened walls which are rusty brown in transmitted light. HABITAT: in mountain forest, Waiopehu, 20.4.1947, E. Cone in Stevenson (type). [EH] Examination of the type material (together with additional collection made in New Zealand) justify this proposed combination. Spores oval to subcylindrical, neither amyloid nor dextrinoid, hyaline, smooth, 7-8.5 X 4—4.5 p.. Cheilocystidia conspicuous, thinwalled, with yellow plasmatic pigment in KOH, clamp connections present. Pleurocystidia none. [JAC] cheilos collapsed. Spores length=7.0–9.4µm (µ=8.2, σ=0.7), width=3.8–5.4µm (µ=4.4, σ=0.4), Q=1.6–2.2µm (µ=1.9, σ=0.2), n=16

Tricholoma ornaticeps G. Stev. 1964

[Notes from Kew Type specimen, PRJ 2010] Kew images.

Tricholoma ornaticeps G. Stev. 1964

Pileus 7-8 cm diam., ochraceous to saffron yellow thickly dotted with small brown fibrillose scales, convex with down-rolled margin becoming broadly concave; flesh creamy yellow continuous with that of stipe. Gills sinuate, moderately distant, yellow staining brown at edges. Stipe 3 x 1 cm, creamy above, ochraceous at base, fibrillose striate. Spores 8-8.5 x 4.5-5 µm, non-amyloid, ovoid, moderately thin-walled (Fig. 32); copious white spore print. Cuticle of loosely woven hyphae about 5 µm diam.; scales are coremia-like tufts of parallel hyphae 3-5 µm diam., with thickened walls which are rusty brown in transmitted light.
In mountain forest, Waiopehu, 20.4.19471 E-Cone in Stevenson (type).
Pileus 7-8 cm diam., ochraceus usque croceus, squamulis parvis brunneis fibrillosis dense sparsus, convexus, margine deflexo-revoluto, deinde late concavus; came cremeo-lutea cum stipite continua. Lamellae sinuosae, modice distantes, luteae, marginibus brunneo-tinctis. Stipes 3 x 1 cm, superne cremeus, basi ochraceus, fibrilloso-striatus. Sporae 8-8.5 x 4.5-5 µm haud amyloideae, ovoideae, parietibus modice crassis, sporarum cumulo copioso albo. Cuticula ex hyphis laxe intertextis circiter 5 µm diam. sistens; squamae e crinibus coremiiformibus hypharum parallelarum 3-5 µm diam. sistentes, parietibus incrassatis luce transmissa ferrugineo-brunneis.
Spores inamyloid
Typus: E. Cone in Stevenson 237

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Tricholoma ornaticeps G. Stev. 1964
Tricholoma ornaticeps G. Stev.
Tricholoma ornaticeps G. Stev. 1964
Tricholoma ornaticeps G. Stev. 1964
Tricholoma ornaticeps G. Stev. 1964
Tricholoma ornaticeps G. Stev. (1964)
Tricholoma ornaticeps G. Stev. 1964
Tricholoma ornaticeps G. Stev. (1964)

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typification
in mountain forest, [New Zealand], Waiopehu, 20.4.1947, E. Cone in Stevenson 237, Holotype K(M) 177251

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1cb1b9aa-36b9-11d5-9548-00d0592d548c
scientific name
Names_Fungi
1 January 2000
26 June 1998
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