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Hygrophorus segregatus E. Horak 1990

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Names_Fungi record source
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This is indigenous
Threat status: Data deficient
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Hygrophorus segregatus E. Horak, New Zealand J. Bot. 28 292 (1990)
Hygrophorus segregatus E. Horak 1990

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Endemic
Present
New Zealand
Political Region

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E. Horak
E. Horak
1990
292
ICN
Hygrophorus segregatus E. Horak 1990
NZ holotype
species
Hygrophorus segregatus

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segregatus

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Hygrophorus segregatus E. Horak 1990

SPECIMENS: NZ: NA, Northcote, Kauri Glen Park, PDD 29377. - SA, Coromandel Peninsula, Kauaeranga Valley, ZT 68/645.
Pileus -25 mm, hemispherical to convex with broad umbo, campanulate becoming plane with distinct papilla; whitish, pale yellow or yellow, darker in centre, red or orange colours absent; viscid when moist becoming smooth in dry condition, membranaceous, striate towards margin. -Lamellae 8-14 (1-3) decurrent to arcuate, rather distant, up to 3 mm wide, occasionally forked near margin or with anastomoses; pale yellow to yellow, edges concolorous, entire. - Stipe 25-80 x 1.5-3 mm, cylindrical or gradually tapering towards base; upper half concolorous with pileus, turning apricot-orange-pink towards and at base; dry, smooth, basal tomentum white, occasionally substrigose, solid becoming fistulose with age, single. - Context yellow (in pileus and apex of stipe), pink-orange in base of stipe, brittle. - Odour and taste not distinctive. - Chemical reactions on pileus: KOH - negative. - Spore print white. Spores 6.5-8 x 3.5-4.5 um, elliptical to drop-shaped, smooth, hyaline, inamyloid. - Basidia 35-55 x 5-6 um, 4-spored. -Cystidia absent -Pileipellis an ixocutis of cylindrical hyphae (2-6 um diam.), pale brown (KOH) plasmatic and/or encrusting pigment; clamp connections present (Pl. 1, Fig. 7).
DISTRIBUTION: NZ (NA, SA).
ECOLOGY: Scattered; saprobic on soil among litter in broadleaved-conifer forests (Kunzea ericoides, Elaeocarpus, Podocarpus, Dacrydium, Agathis, Cyathea). June-July.
Pileus -25 mm, conicoumbonatus dein papillatoplanus, albidoflavus vel stramineus, viscidus. Lamellae arcuarodecurrentes, isabellinae vel pallide stramineae. Stipes 25-80 x 1.5-3 mm, cylindricus vel basim versus attenuatus, apicaliter pileo concolor, deorsum ochraceoroseus, siccus. Sporae 6.5-8 x 3.5 4.5 um, ellipticae vel subguttaeformes. Ad terram in silvis. Novazelandia. Holotypus PDD 27225.

ETYMOLOGY: segregatus = separated, isolated.

This new taxon is characterised by its slender yellow basidiomes. The base of the stipe slowly turns apricot or orange. Hygrophorus segregatus shares this feature with H. salmonipes (Stev.) and therefore in the field these two taxa are readily confused. Microscopically, however, these similar-looking agarics are distinguished at once by the size of the spores.

TYPE: NZ: NA, Waipoua, in broadleaved-conifer forest, 22 vi 1981, Horak, PDD 27225.

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Hygrophorus segregatus E. Horak 1990
Hygrophorus segregatus E. Horak 1990
Hygrophorus segregatus E. Horak 1990
Hygrophorus segregatus E. Horak (1990)
Hygrophorus segregatus E. Horak 1990
Hygrophorus segregatus E. Horak (1990)
Hygrophorus segregatus E. Horak 1990
Hygrophorus segregatus E. Horak (1990)
Hygrophorus segregatus E. Horak 1990
Hygrophorus segregatus E. Horak (1990)
Hygrophorus segregatus E. Horak 1990
Hygrophorus segregatus E. Horak (1990)
Hygrophorus segregatus E. Horak 1990

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Hygrophorus segregatus E. Horak 1990
New Zealand
Auckland
Hygrophorus segregatus E. Horak 1990
New Zealand
Northland

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1cb1b365-36b9-11d5-9548-00d0592d548c
scientific name
Names_Fungi
1 January 2001
15 December 2003
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