Entoloma minutoalbum E. Horak 1976 [1975]

Caption:

Details

Name scientific

Entoloma minutoalbum E. Horak, Sydowia 28 182 (1976 [1975])

Preferred name

Entoloma minutoalbum E. Horak 1976 [1975]

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)

Horak 1983

Nomenclature

Authors

E. Horak

Original authors

E. Horak

Publication place

Horak, E. 1976: On cuboid-spored species of Entoloma (Agaricales). Sydowia 28: 171-236.

Year published

1976

Year on publication

1975

Publication page

182

Nomenclatural status

replacement, replacement name

Nomenclatural code

ICN

Basionym

Entoloma minutoalbum E. Horak 1976 [1975]

Based on

Entoloma sordidulum E. Horak 1973

Type locality

NZ holotype (PDD 27012)

Taxonomic rank

species

Canonical form

Entoloma minutoalbum

Classification

Kingdom

Fungi

Phylum

Basidiomycota

Class

Agaricomycetes

Order

Agaricales

Family

Entolomataceae

Genus

Entoloma

Species

minutoalbum

Synonyms

Associations

View full associations record

Association type

Associated organism

Association source

has host

Cyathea medullaris (G.Forst.) Sw.

PDD (1 records from New Zealand.)

Descriptions

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

Entoloma sordidulum E. Horak 1973

Collections Examined

Holotype (PDD 27012); Isotype (Herb. HK. ZT 68/239J: 'Along the track between Taylorville and Mt. Sewell, prov. Westcoast, N.Z.; leg. Horak, 31.III.1968'.

Description

Pileus 5-12 mm diam., convex and depressed at the centre, becoming concave or even subumbilicate, radially fibrillose or velvety, hygrophanous, striate at the margin, dry, membranous, whitish or light beige, colour fading in aged carpophores. Lamellae (L 6-10, l 3), adnate to subdecurrent, when young whitish turning deep pink, gill edge concolorous and not fimbriate. Stipe 8-15 x -1 mm, cylindrical, central or sometimes eccentric, curved, with white rhizoids at the base, glabrous, dry, hyaline or beige-brownish, solitary. Context membranous, whitish. Odor and taste farinaceous.
Spores 8-9 x 6-8.5 µm, 4-sided, rarely with 5 obtuse angles. Basidia 25-38 x 10-12 µm, 4-spored. Cheilo- and pleurocystidia none. Cuticle a cutis of repent and densely woven, cylindrical hyphae (6-15 µm diam.), membrane thin-walled, pigment absent. Clamp connections abundant.

Habitat

On rotten wood. New Zealand.

Latin

Pileo 5-12 mm lato, convexo-umbilicato, concavo, radialiter fibrilloso vel sublanato, hygrophano, sicco; marginem versus striato, albidulo vel argillaceo. Lamellis adnato-decurrentibus, albidulis dein perroseis, acie concolori instructis. Stipite 8-15 x -1 mm, cylindraceo, frequenter curvato et subexcentrico, hyalino vel argillaceo-brunneolo, glabro, basim rhizoidibus albis instructo. Odore saporeque farinaceo. Sporis 8-9 x 6-8.5 µm, 4-angulatis. Basidiis 4-sporigeris. Cystidiis nullis. Epicute ex hyphis cylindraceis cutem formantibus, haud pigmentatis, fibuligeris. Ad truncos putridos. Novazelandia.

Typification

Holotypus (PDD 27012): 'Between Taylorville and Mt. SeweD, N.Z.; leg. Horak, 31.III.1968'.

Horak, E. 1976: On cuboid-spored species of Entoloma (Agaricales). Sydowia 28: 171-236.

Entoloma minutoalbum E. Horak 1976 [1975]

Collections Examined

Material examined: Holotype (PDD 27012): - ZT, Herb. HORAK 74/134: Rancho Hambre, Valle Tierra Major, Tierra del Fuego, Argentina, 3. III. 1974, leg. HORAK.

Description

Description of the Fuegian collection

Pileus -12 mm diam., hemispherical to convex, white, aged specimens turning pink, covered with silky appressed fibrils, not striate, dry, membranaceous. Lamellae (L 5-6, l 1) emarginate adnate, ventricose, gill edge concolorous. Stipe -20/-1,5 mm, cylindrical, often bent towards the base which is covered with fibrillose white squamules, pruinose towards the apex, white, fragile, dry, single in groups. Context white. Odour and taste not distinctive. Spores 6-8 mµ, cuboid to quadrate. Basidia 30-40/10-12 mµ, 4-spored. Cheilo- and pleurocystidia absent. Cuticle a cutis of repent cylindrical hyphae (4-10 mµ diam.), membrane encrusted with pigment. Clamp connections present.

Habitat

Habitat: On rotten wood or on soil in wet localities in broad leaved forests and Nothofagus forests. New Zealand (type), Tierra del Fuego (Argentina).

Notes

The collection from Tierra del Fuego corresponds well in all essential characters with the type from New Zealand. The small white fruitingbodies are easely overlooked for they grow preferably among debris in wet localities hidden by lush herbaceous plants.