Entoloma melanocephalum G. Stev. 1962

Caption:

Details

Name scientific

Entoloma melanocephalum G. Stev., Kew Bull. 16 231 (1962)

Preferred name

Entoloma melanocephalum G. Stev. 1962

Taxonomy reference

Horak, E. 2008: Agaricales (Basidiomycota) of New Zealand. 1. Pluteaceae (Pluteus, Volvariella), Entolomataceae (Clitopilus, Entoloma, Pouzarella, Rhodocybe, Richoniella). Fungi of New Zealand. 5. Fungal Diversity Press.

Biostatus

Origin

Occurrence

Georegion

Schema

Biostatus source

Comment

Indigenous, non-endemic

Present

New Zealand

Political Region

Horak, E. (2008)

Nomenclature

Authors

G. Stev.

Original authors

G. Stev.

Publication place

Stevenson, G. 1962: The Agaricales of New Zealand: III. Kew Bulletin 16(2): 227–237.

Year published

1962

Publication page

231

Nomenclatural code

ICN

Basionym

Entoloma melanocephalum G. Stev. 1962

Type locality

NZ holotype (K, Stevenson 597)

Taxonomic rank

species

Canonical form

Entoloma melanocephalum

Classification

Kingdom

Fungi

Phylum

Basidiomycota

Class

Agaricomycetes

Order

Agaricales

Family

Entolomataceae

Genus

Entoloma

Species

melanocephalum

Vernacular names

Language of use: English

Blue-shanked Pinkgill

Synonyms

Associations

View full associations record

Association type

Associated organism

Association source

has host

Nothofagus

McKenzie, E.H.C.; Buchanan, P.K.; Johnston, P.R. (2000)

has host

Agathis australis (D.Don) Lindl.

McKenzie, E.H.C.; Buchanan, P.K.; Johnston, P.R. (2002)

has host

Agathis australis (D.Don) Lindl.

PDD (1 records from New Zealand.)

has host

Cyathea dealbata (G.Forst.) Sw.

PDD (2 records from New Zealand.)

has host

Cyatheales

PDD (1 records from New Zealand.)

has host

Leptospermum scoparium J.R.Forst. & G.Forst.

PDD (2 records from New Zealand.)

Descriptions

Horak, E. 1973: Fungi Agaricini Novazelandiae I-V. Beihefte zur Nova Hedwigia. 43.

Entoloma decolorans E. Horak 1973

Collections Examined

Holotype (PDD 27049); Isotype (Herb. HK. ZT 68/167): 'Ahaura, Ngahere, Prov. Westcoast, N.Z.; leg. Horak, 15.III.1968'. - Herb. HK. ZT 68/145 (PDD 27047): 'S of Lake Hochstetter, Prov. Westcoast, N.Z.; leg. Horak, 12.III.1968'. - Herb. HK. ZT 697169: 'Track to Mt. Luxmore, Lake Te Anau, Fjordland N.P., N.Z.; leg. Horak, 26.III.1969'

Description

Pileus 6-20 mm diam., hemispherical or convex when young becoming depressed or umbilicate at the centre, margin incurved, deep blue, covered by black or concolorous squamules or fibrils, dry, not striate. Lamellae (L 8-15, 1 1-3) adnexed or adnate, sometimes subdecurrent with short tooth, whitish at first, turning pink, gill edge concolorous and not fimbriate. Stipe 20-50 x 1-3 mm, cylindrical, slender, blue, with white weft of mycelium at the base, glabrous, dry, fistulose. Context blue underneath the cuticle. Odor and taste not distinctive or slightly farinaceous only.
Spores 9-11.5 x 6.5-8 µm, 5-6-sided. Basidia 25-30 x 10 µm, 4-spored. Cheilocystidia consisting of fasciculate chains of cylindrical cells, terminal cells clavate or cylindrical (15-75 x 6-10 µm), pigment absent. Pleuro- and caulocystidia absent. Cuticle a cutis of suberect, fasciculate, cylindrical hyphae (4-10 µm diam.), membrane thin-walled, not gelatinized, with grey, plasmatic pigment. Clamp connections absent.

Habitat

On soil in forests (under Nothofagus spp., Podocarpus spp., Dacrydium cupressinum). New Zealand.

Latin

Pileo 6-20 mm lato, hemisphaerico deinde umbilicato, coeruleo, squamis vel fibrillis atris instructo, sicco, haud striato. Lamellis ex adnato adnexis, primo isabellinis postea roseis, acie concolori integraque instructis. Stipite 20-50 x 1-3 mm, cylindraceo, coeruleo, mycelio albo ad basim obtecto, glabro, sicco, fistuloso. Odore saporeque nullo. Sporis 9-11 x 6.5-8 µm, 5-6-angulatis. Basidiis 4-sporigeriis. Cheilocystidiis conspicuis, cellulis terminalibus clavatis (15-75 x 6-10 µm), haud coloratis. Epicute ex hyphis cylindraceis et suberectis cutem formantibus, pigmento griseo plasmaticoque instructis. Septis defibulatis. Ad terram in silvis. Novazelandia.

Typification

Holotypus (PDD 27049): ‘Ahaura, Ngahere, N.Z; leg. Horak, 15.III.1968'.

Horak, E. 1973: Fungi Agaricini Novazelandiae I-V. Beihefte zur Nova Hedwigia. 43.

Entoloma melanocephalum G. Stev. 1962

Collections Examined

Holotype (K): 'Keith George Park, Wellington, N.Z.; leg. Stevenson 597, 30.V.1949'. - Herb. HK. ZT 68/181 (PDD 27050): 'Ahaura, Ngahere, Prov. Westcoast, N.Z.; leg. Horak, 18.III.1968'. - Herb. HK. ZT 68/236: 'Track from Taylorville to Mt. Sewell, Prov. Westcoast, N.Z.; leg. Horak, 31.III.1968'.

Description

Pileus 20-50 mm diam., convex or campanulate with distinct umbilicus or at least depression at the centre, margin incurved and striate, dark brown-blue or black-blue, velvety or finely squamulose all over, dry, not hygrophanous. Lamellae (L 12-20, 1-7), emarginate and slightly decurrent with short tooth, greenish-bluish when young, turning pinkish-blue or pinkish-brown, gill edge fimbriate and blue coloured. Stipe 25-55 x 2-4 mm, cylindrical or attenuated upwards, curved, sometimes eccentric, blue or greenish-blue at the apex, bluish-green or bluish-olive towards the base which is often covered with the white weft of mycelium, dry, stuffed or fistulose, glabrous. Context blue, greenish-blue at the base. Chem. reactions: HCl on pileus - lilac, KOH - negative. Odor and taste not distinctive.
Spores 9.5-11 x 6.5-8.5 µm. 5-6-angled. Basidia 32-50 x 10-12 µm, 4-spored. Cheilocystidia 35-80 x 7-18 µm, clavate or cylindrical, thin-walled, with bluish plasmatic pigment, dense clusters forming the sterile zone at the gill edge. Pleuro- and caulocystidia none. Cuticle a trichoderm of suberect or erect, clavate hyphae (terminal cells 35-80 x 15-20 µm), apically rounded membrane thin-walled, not gelatinized, with blue plasmatic pigment. Clamp connections absent.

Habitat

On soil (under Beilschmidia tawa, Nothofagus spp., Podocarpus spp.) or on rotten wood or debris (of Nothofagus spp. and Dicksonia spp.). New Zealand

Illustrations

Stevenson 1962: 1.c.

Notes

This species is characterized by its green-blue stipe (the colour may fade in aged specimens but is still recognisable in the context of the stipe), the blue coloured gill edge and the large spores.

Horak, E. 1973: Fungi Agaricini Novazelandiae I-V. Beihefte zur Nova Hedwigia. 43.

Entoloma rubromarginatum E. Horak 1973

Collections Examined

Holotype (PDD 27053); Isotype (Herb. HK. ZT 68/637): 'Kauaeranga Valley, Coromandel Peninsula, N.Z.; leg. Horak, 5.VIII.968'. - Herb. HK. ZT 69/104: 'Hari Hari, Prov. Westland, N.Z.; leg. Horak, 21.II.1969'.

Description

Pileus 12-25 mm diam., convex to umbilicate, central depression distinct, beige or bluish-grey, densely covered with fuligineous or dark blue squamules, especially around the centre, margin strongly striate, hygrophanous, membranous. Lamellae (L 8-12, 1 3-4) emarginate, with red coloured, fimbriate gill edge. Stipe 20-35 x 1-2 mm, cylindrical, blue, with white weft at the base, smooth, fistulose. Odor and taste not distinctive.
Spores 10-12 x 7-8 µm, 5-6-angled. Basidia 24-30 x 9 µm, 4-spored. Cheilocystidia 40-95 x 5-14 µm, clavate, thin-walled membrane, with brown plasmatic pigment. Pleuro- and caulocystidia none. Cuticle a cutis or loose trichoderm of suberect, short, cylindrical hyphae (5-20 µm diam.), terminal cells subclavate, with brown, plasmatic pigment. Clamp connections absent.

Habitat

On or among litter of tree-fern (Dicksonia spp., Cyathea spp.). New Zealand.

Latin

Pileo 12-25 mm lato, e convexo umbilicato, griseocoeruleo vel brunneolo squamulis nigris (coeruleis) obtecto, valde striato, sicco. Lamellis emarginatis, isabellinis dein roseis, acie fimbriata et rubrobrunnea instructis. Stipite 20-35 x 1-2 mm, cylindraceo, coeruleo, mycelio albo ad basim instructo, glabro, sicco, fistuloso. Odore saporeque nullo. Sporis 10-12 x 7-8 µm, 5-6 angulatis. Basidiis 4-sporigeris. Cheilocystidiis clavatis vel cylindraceo-articulatis (40-95 x 5-14 µm), pigmento brunneo plasmatico instructis. Epicute ex hyphis suberectis cutem formantibus, pigmento brunneo plasmatico impletis. Septis defibulatis. Ad detritum Dicksoniae vel Cyatheae. Novazelandia.

Typification

Holotypus (PDD 27053): 'Kauaeranga Valley, Coromandel Peninsula, N.Z.; leg. Horak.5.VII.1968'.

Johnston, P.R. 2010: Kew Type Specimens - images and notes from P.R. Johnston, 2010.

Entoloma melanocephalum G. Stev. 1962

Notes

[Notes from Kew Type specimen, PRJ 2010] filed under Leptonia in K

Taxonomic concepts

Name

Cited name

Reference

Preferred name

Parent name