Rhizocybe albida (G. Stev.) J.A. Cooper 2015

Caption:

Details

Name scientific

Rhizocybe albida (G. Stev.) J.A. Cooper 2015

Preferred name

Rhizocybe albida (G. Stev.) J.A. Cooper 2015

Biostatus

Origin

Occurrence

Georegion

Schema

Biostatus source

Comment

Endemic

Present

New Zealand

Political Region

Nomenclature

Authors

(G. Stev.) J.A. Cooper

Original authors

G. Stev.

Combination authors

J.A. Cooper

Publication place

Cooper, J.A. 2015: Nomenclatural Novelties. In: Index Fungorum. 1-1.

Year published

2015

Nomenclatural code

ICN

Basionym

Omphalina albida G. Stev. 1964

Taxonomic rank

species

Canonical form

Rhizocybe albida

Classification

Kingdom

Fungi

Phylum

Basidiomycota

Class

Agaricomycetes

Order

Agaricales

Family

Lyophyllaceae

Genus

Rhizocybe

Species

albida

Synonyms

Associations

View full associations record

Association type

Associated organism

Association source

has host

Cordyline australis (G.Forst.) Endl.

PDD (1 records from New Zealand.)

has host

Corynocarpus laevigatus J.R.Forst. & G.Forst.

PDD (1 records from New Zealand.)

has host

Cyathea dealbata (G.Forst.) Sw.

PDD (1 records from New Zealand.)

has host

Cyatheales

PDD (1 records from New Zealand.)

has host

Dacrydium cupressinum Lamb.

PDD (2 records from New Zealand.)

has host

Dicksonia

PDD (1 records from New Zealand.)

has host

Nothofagus

PDD (1 records from New Zealand.)

has host

Nothofagus menziesii (Hook.f.) Oerst.

PDD (1 records from New Zealand.)

has host

Weinmannia racemosa L.f.

PDD (1 records from New Zealand.)

Descriptions

Cooper, J.A. 2014-: Studies of New Zealand agaric type collections not deposited in PDD (unpublished).

Omphalina albida G. Stev. 1964

Description (NZ)

[GS] Pileus 0.5-2-5 cm. diam., white becoming tinged cream, plane with downrolled margin becoming umbilicate, velvety to fibrillose, somewhat grooved or striate towards margin; flesh thin, white. Gills decurrent, white, thin, shallow, moderately distant to crowded. Stipe 0-5-2 cm. x 1-2 mm., white, centric or eccentric. Spores 5 X 3-4um, non-amyloid (Fig. 1/23, p. 10). Cuticle of loosely woven hyphae 2-5um, diam., with clamp connections, some with thickened walls. HABITAT: on fallen rotting wood or tree fern stipes, arising individually but many close together from a spreading white mycelial mat, with or without white rhizomorphs, Levin, 3.5.1947, Stevenson (type); & Levin, 18.6.1949, Stevenson. [EH] The spores are oval, smooth, neither amyloid nor dextrinoid, thinwalled, without germ-spore, 5-5.5 X 3-3.5 um. Cystidia none. Cuticle consists of cylindrical, hyaline, nongelatinised hyphae, 3-6 um, diam., with clamp-connections. [JAC] Easily distingusihed from Pleurocollybia cremea by funnel-shaped cap, decurrent gills and clamps. P. cremea can also have basal hyphal pad and rhizomoprhs. Sequences of recent material indicate this is a Rhizocybe

Horak, E. 1971: A contribution towards the revision of the Agaricales (Fungi) from New Zealand. New Zealand Journal of Botany 9(3): 403-462.

Clitocybe albida (G. Stev.) E. Horak 1971

Description

Fig. 1 = Clitocybe albida (Stevenson) comb. nov. (Basionym: O. albida Stevenson, Kew Bull. 19: 12, 1964)

The spores are oval, smooth, neither amyloid nor dextrinoid, thin-walled, without germ-spore, 5-5.5 X 3-3.5 µ. Cystidia none. Cuticle consists of cylindrical, hyaline, nongelatinised hyphae, 3-6 µ. diam., with clamp-connections.

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

Omphalina albida G. Stev. 1964

Notes

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

Stevenson, G. 1964: The Agaricales of New Zealand: V. Kew Bulletin 19(1): 1-59.

Omphalina albida G. Stev. 1964

Description

Pileus 0.5-2.5 cm diam., white becoming tinged cream, plane with down rolled margin becoming umbilicate, velvety to fibrillose, somewhat grooved or striate towards margin; flesh thin, white. Gills decurrent, white, thin, hallow moderately distant to crowded. Stipe 0.5-2 cm x 1-2 mm, white, centric or eccentric. Spores 5 x 3-4 µm non-amyloid (Fig. 23), cuticle of loosely woven hyphae 2-5 µm diam., with clamp connections, some with thickened walls.

Habitat

On fallen rotting wood or tree fern stipes, arising individually but many close together from a spreading white mycelial mat, with or without white rhizomorphs, Levin, 3.5.1947, Stevenson (type); & Levin, 18.6.1949; Stevenson.

Latin

Pileus 0.5-2.5 cm diam., albus deinde cremeo-tinctus, planus, margine deorsum involute, tandem umbilicatus, velutinus usque fibrillosus, marginem versus leviter canaliculatus vel striatus; caro tenuis, alba. Lamellae decurrentes, albae, tenues, haud altae, modice distantes usque confertae. Stipes 0.5-2cm x 1-2 mm, albus, centricus vel excentricus. Sporae 5 x 3-4 µm, haud amyloideae. Cuticula ex hyphis laxe intertextis 2-5 µm diam. sistens, cum fibulis hyphis nonnullis cum parietibus incrassatis.

Typification

Typus: Stevenson 136.