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Mycena conicola G. Stev. 1964

Scientific name record
Names_Fungi record source
Is NZ relevant
This is a synonym
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Threat status: Data deficient

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Mycena conicola G. Stev., Kew Bull. 19 51 (1964)

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G. Stev.
G. Stev.
1964
51
ICN
Mycena conicola G. Stev. 1964
NZ holotype
species
Mycena conicola
rooting in fallen cones of spruce [Picea], Nelson, [New Zealand] 20.6.195 Stevenson 1141 K(M)

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conicola

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Mycena conicola G. Stev. 1964

K(M)235193. Stevenson 1141 on falllen cones of Picea, Cawthron, Nelson, 20/5/2956. Regarding M. conicola it is useful to refer to the comments of Grgurinovich in the Mycenas of SE Australia; "Stevenson (1964) described M. conicola G. Stev. from New Zealand. Horak (1971) recorded that this species approaches M. flos-niveum Kuhner, a species belonging in Section Mycena. Mycena flos-niveum has clavate cheilocystidia that are 'covered with fairly few, unevenly spaced, usually rather coarse, simple to branched, straight to curved excrescences' (Maas Geesteranus 198.5a, 1992b). Horak's drawings (1971: Fig. 4 (68)) show M. conicola with clavate to sphaeropedunculate cheilocystidia covered with abundant evenly spaced short cylindrical excrescences. Mycena conicola clearly belongs in Section Filipedes and not Section Mycena. Like M. austrofilopes, M. conicola has two-spored basidia. The former species can be distinguished by its moderately close to close lamellae, its stipe that has strigose hairs towards the base rather than 'spreading hyphal hairs' (Stevenson 1964), its larger basidiospores (7.3- 13.5 x 4.3-7.1 um for var. austrofilopes, compared with 10-12 X 4—5 um for M. conicola (Stevenson 1964)), the absence of pleurocystidia, and its habitat on litter under species of Eucalyptus rather than on fallen cones of spruce.". As a consequence, and given that both M. austrofilopes and M. filopes occur in New Zealand in both native and exotic habitats, the issue is reduced to ascertaining which of these species M. conicola is. In this material there are no pleurocystidia and the cheilocystidia measure to 30 x 15um and spores length=9.0–11.8µm (µ=10.0, σ=0.69), width=3.8–5.4µm (µ=4.7, σ=0.40), Q=1.7–2.5µm (µ=2.16, σ=0.19), n=22. Number of sterigma not seen due to degradation. A mount does show some conspicuoulsy larger spores so 2 & 4 spored. Smaller (abundant) spore size length=9.0–10.9µm (µ=9.9, σ=0.51), width=3.8–5.3µm (µ=4.6, σ=0.38), Q=1.7–2.5µm (µ=2.15, σ=0.19), n=20. The evidence suggests this is M. austrofilopes rather than M. filopes. None of the characters quoted by Grgurinovich for separation are adequate.

Mycena conicola G. Stev. 1964

Mycena conicola Stevenson (29 D) Fig. 4 = Mycena aff. flos-nivium Kuhner

The type is poorly preserved but nevertheless several important details were obtained. According to these characters this fungus approaches M. flos-nivium which grows in Europe on rotten cones os spruce from late winter until spring. The New Zealand material was collected at the end of June, on cones of spruce. The structure of the cuticle and size and shape of the cheilocystidia and spores (110.-12 X 4.5-5 µ) support this identification. It is recommended that M. conicola be regarded as a synonym of M. flos-nivium and added to the list of exotic fungi in New Zealand.

Mycena conicola G. Stev. 1964

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

Mycena conicola G. Stev. 1964

Pileus 1.5-8 cm. diam., greyish fawn, brownish fawn at centre, striate at margin, campanulate, umbonate; flesh thin, fawn, fragile. Gills sinuately adnexed, greyish fawn, moderately distant. Stipe 5-8 cm. x 2-3 mm., fawn, silky, hollow, fragile, smooth, with spreading hyphal hairs at base. Spores 10-12 x 4-5 µm, amyloid, cylindric. Hymenophoral trama and tissue of pileus strongly pseudo-amyloid. Cheilo- and pleurocystidia similar, 20-30 x 10-15 µm ornamented (Fig. 47). Smell noticeable.
Rooting in fallen cones of spruce [Picea], Nelson, 20.6.1956, Stevenson (type).
Pileus 1.5-2 cm diam., griseo-hinnuleus, medio brunneo-hinnuleus, margine striatus, campanulatus, umbonatus; caro tenuis, hinnulea, fragilis, nullae sinuato-adnexae, griseo-hinnuleae, modice distantes. Stipes 5-8 cm. 2-3 mm., hinnuleus, sericeus, cavus, fragilis, laevis, basi pilis hyphalibus patentibus praeditus. Sporae 10-12 x 4-5 µm. amyloideae, cylindricae. Trama hymenophoralis et pilei textura valde pseudo-amyloidea. Cheilo- et pleurocystidia similia, 20-30 X 10-15 µm., ornata. Odor manifestus.
Typus: Stevenson 141.

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Mycena conicola G. Stev. 1964
Mycena conicola G. Stev. 1964
Mycena conicola G. Stev. 1964
Mycena conicola G. Stev. (1964)
Mycena conicola G. Stev. 1964
Mycena conicola G. Stev. (1964)
Mycena conicola G. Stev. 1964
Mycena conicola G. Stev. 1964
Mycena conicola G. Stev. 1964
Mycena conicola G. Stev. (1964)
Mycena conicola G. Stev. 1964
Mycena conicola G. Stev. (1964)
Mycena conicola G. Stev. 1964
Mycena conicola G. Stev. (1964)
Mycena conicola G. Stev. 1964
Mycena conicola G. Stev. 1964
Mycena conicola G. Stev. (1964)

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taxonomic status
with clavate cheilocystidia bearing short knobs and 2-spored. Horak's synonymy with M. flos-niveum incorrect as that with long excerscences, 4-spored, and darker [JAC]
typification
rooting in fallen cones of spruce [Picea], Nelson, [New Zealand] 20.6.195 Stevenson 1141 K(M)

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1cb1b4d2-36b9-11d5-9548-00d0592d548c
scientific name
Names_Fungi
1 January 2000
21 January 2014
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