Omphalina colensoi (Berk.) J.A. Cooper 2023

Caption:

Details

Name scientific

Omphalina colensoi (Berk.) J.A. Cooper, Index Fungorum 531 2 (2023)

Preferred name

Omphalina colensoi (Berk.) J.A. Cooper 2023

Biostatus

Origin

Occurrence

Georegion

Schema

Biostatus source

Comment

Indigenous, non-endemic

Present

New Zealand

Political Region

Present also in Australia

Nomenclature

Authors

(Berk.) J.A. Cooper

Original authors

Berk.

Combination authors

J.A. Cooper

Publication place

J.A. Cooper 2023: Nomenclatural novelties. Index Fungorum 531: 1-4.

Year published

2023

Publication page

Nomenclatural code

ICN

Basionym

Agaricus colensoi Berk. 1855

Taxonomic rank

species

Canonical form

Omphalina colensoi

Classification

Kingdom

Fungi

Phylum

Basidiomycota

Class

Agaricomycetes

Order

Agaricales

Family

Omphalinaceae

Genus

Omphalina

Species

colensoi

Synonyms

Descriptions

Berkeley, M.J. Fungi. In: Hooker, J.D. Flora Novae-Zelandiae. Part II. Flowerless Plants. Lovell Reeve. 172-210, 338.

Agaricus colensoi Berk. 1855

Description

Agaricus (Omphalia) Colensoi, Berk.; pusillus, pileo tenui umbilicato glabro, margine involute, stipite graeili furfuraceo glabrescente, lamellis adnato-decurrentibus. HAB . On the ground, amongst sand and on scraps of wood, wet logs, etc., Ngaawapurua, Colenso. White. Pileus an inch or more across, smooth, minutely striate all over when dry, deeply umbilicate; margin involute. Stem 1/2-3/4 of an inch high, not a line thick, attenuated downwards, furfuraceous, at length smooth. Gills moderately broad, adnato-decurrent. The nearest ally of this species is probably A. pyxidatus.

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

Hygrophorus brunneus sensu G. Stev. 1963 [1962]

Notes

This doubtful species was described in Cantharellus by Cleland although he commented that it was probably better placed in Omphalia. Type material has not been studied.

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

Omphalia colensoi (Berk.) Sacc. 1887

Notes

The poorly preserved type (COLENSO 440-217b) made it impossible to find any details necessary for an exact classification.

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

Agaricus colensoi Berk. 1855

Notes

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

Massee, G.E. 1899: The fungus flora of New Zealand. Transactions and Proceedings of the New Zealand Institute 31: 282–349.

Omphalia colensoi (Berk.) Sacc. 1887

Description

Pileus thin, rather deeply umbilicate, sometimes almost funnel-shaped, glabrous, entirely covered with very fine radial wrinkles (when dry), margin incurved, 1-1.5 cm. across; gills pallid, rather narrow, slightly decurrent, thin and not distant; spores hyaline, subglobose, about 4 x 3 µ; stem 1-1.5 cm. long, slender, minutely scurfy, then becoming glabrous.

Distribution

Ngaawapurua, Northern Island, New Zealand.

Habitat

On the ground, amongst sand and scraps of wood, wet logs, &c.

Notes

The pileus appears to have been whitish when fresh, stem darker. Distinguished from Omphalia umbellifera by the thin, rather close gills. Type specimens examined.

Massee, G.E. 1899: The fungus flora of New Zealand. Transactions and Proceedings of the New Zealand Institute 31: 282–349.

Omphalia pyxidata sensu Massee 1899 [1898]

Description

Pileus membranaceous, umbilicate, then infundibuliform, almost glabrous ; radially striate and brick-red or rufescent when moist, hygrophanous ; whitish and minutely silky when dry; 1.5-2.5 cm. across; gills decurrent, rather distant, narrow, flesh-colour, then yellowish; spores 7-8 x 5-6 µ; stem 2-2.5 cm. long, 2 mm. thick, even, tough, pale-rufescent, stuffed, then hollow.

Distribution

Dannevirke, New Zealand. Europe, Australia.

Habitat

Among short grass, &c.

Notes

Characterized by the dull-red tinge of the entire fungus and the narrow gills. Specimens of this species have been found amongst the New Zealand fungi sent to Kew by Colenso, hence its occurrence does not rest on the doubtful identification of the specimens alluded to in the Handbook of the New Zealand Flora, p. 602.

Stevenson, G. 1963: The Agaricales of New Zealand: IV. Kew Bulletin 16(3): 373–384.

Hygrophorus brunneus sensu G. Stev. 1963 [1962]

Description

Pileus 0.5-1 cm. diam., light brown, darker at centre and with dark radial striations, convex, umbilicate, tending to be crimped or waved at edge, matt to subfibrillose; flesh brown. Gills decurrent, forking in larger specimens, distant. Stipe 1-1.5 cm. X l-2 mm., fawn to light brown, velvety to subfibrillose, fringed with white hyphae at base, solid, rather tough. Spores 7 X 5 µm., hyaline. Basidia 30-35 X 5 µm. four-spored.

Habitat

habitat: attached to moss or rooting on banks in the bush, Wellington Botanic Garden, 2.6.19491 Levin, 18.6.1949, both Stevenson.

Notes

Gleland remarks, 'This species is probably better placed under Omphalia', but, as it has Hygrophoroid basidia and gill trama it is here placed in Hygrophorus subgenera. Hygrocybe. The exact colour of the spore print needs to be determined.