Laccaria masoniae G. Stev. 1964

Caption:

Details

Name scientific

Laccaria masoniae G. Stev., Kew Bull. 19 4 (1964)

Preferred name

Laccaria masoniae G. Stev. 1964

Taxonomy reference

Segedin, B.P.; Pennycook, S.R. 2001: A nomenclatural checklist of agarics, boletes, and related secotioid and gasteromycetous fungi recorded from New Zealand. New Zealand Journal of Botany 39(2): 285-348.

Biostatus

Origin

Occurrence

Georegion

Schema

Biostatus source

Comment

Endemic

Present

New Zealand

Political Region

Anon

Australian records under this are misapplications.

Nomenclature

Original authors

G. Stev.

Authors

G. Stev.

Publication place

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

Year published

1964

Publication page

Orthography

as 'masonii'

Nomenclatural status

pro parte

see also Laccaria fibrillosa; epithet honours R. [Ruth] Mason

Nomenclatural code

ICN

Basionym

Laccaria masoniae G. Stev. 1964

Taxonomic rank

species

Canonical form

Laccaria masoniae

Typification

TYPE: New Zealand, Silverstream, 19 July 1949, Stevenson 733 holotype K(M) 235262, kleptotype fragment PDD 99944

Classification

Kingdom

Fungi

Phylum

Basidiomycota

Class

Agaricomycetes

Order

Agaricales

Family

Hydnangiaceae

Genus

Laccaria

Species

masoniae

Subordinates

Associations

View full associations record

Association type

Associated organism

Association source

has host

Nothofagaceae

PDD (2 records from [Not available].)

has host

Nothofagus

PDD (6 records from [Not available].)

has host

Nothofagus cliffortioides

PDD (3 records from [Not available].)

has host

Nothofagus fusca (Hook.f.) Oerst.

PDD (6 records from [Not available].)

has host

Nothofagus menziesii (Hook.f.) Oerst.

PDD (9 records from [Not available].)

has host

Nothofagus solandri (Hook.f.) Oerst.

PDD (8 records from [Not available].)

has host

Nothofagus solandri var. cliffortioides (Hook.f.) Poole

PDD (9 records from [Not available].)

Descriptions

Cooper, J.A. 2014-: Studies of New Zealand agaric type collections not deposited in PDD (unpublished).

Laccaria masoniae G. Stev. 1964

Description

K(M)235262, Stevenson 733. Rooting in moss under Nothofagus solnadrii, Silverstream, 19/7/1949. Folder with two packets, one with annotation slip from Greg Mueller, 26/3 1982. The collection does consist of only the longer fruitbodies depicted by Stevenson in her watercolour. 4-spored. Some evidence of vesicular cheilos, but not clearly distinguished from immature basidia. Spores (minus ornamentation) length=8.0–9.9µm (µ=8.8, σ=0.46), width=7.3–9.8µm (µ=8.4, σ=0.56), Q=0.9–1.2µm (µ=1.05, σ=0.06), n=27. Spines mostly 2-3um long.

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

Laccaria masoniae G. Stev. 1964

Notes

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

McNabb, R.F.R. 1972: The Tricholomataceae of New Zealand. 1. Laccaria Berk. & Br. New Zealand Journal of Botany 10(3): 461-484.

Laccaria masoniae G. Stev. 1964

Collections Examined

Under (1) N. fusca and N. menziesii, Nelson: Lake Daniels track, 7.V.1968, R. F. R. McN.; Maruia, 6.V.1968, R. F. R. McN.; Auckland: Rotorua, Mangorewa Gorge, 10.vii.l971, J. P. Croxall and B. S. Parris, PDD 29390. (2) N. menziesii. Nelson: Karamea, Oparara, 16.V.1971, R. F. R. McN. (3) N. solandri, Canterbury: Lewis Pass, near Boyle River, 25.iv.l969, R. F. R. McN.; Wellington: Silverstream, 19.vii.l949, G. Stevenson no. 733, (HOLOTYPE, K).

Description

PILEUS: 0.5-3.5 cm diam., convex to plano-convex when young, plano-convex or occasionally applanate at maturity, hygrophanous, non-viscid, pellucid-striate at margins under wet conditions, glabrous or minutely furfuraceous in centre, violaceous with buff tints when young, violaceous colour disappearing with maturity and finally entirely buff. Cuticle composed of unspecialised, repent, parallel or slightly interwoven, thin-walled, clamped hyphae 7.5-12.5 µm diam. LAMELLAE; adnexed to adnate, distant, intermixed, thick, to 4 mm deep, pallid violaceous when young, violaceous colour disappearing with maturity and finally pallid brownish pink, occasionally faint violaceous tints remaining, glaucous. STIPE: to 10 cm long, tapering apically, 1-2.5 mm diam. apically, 3-6 mm diam. basally, tough, dry, hollow, longitudinally fibrillose-sulcate, violaceous when young, becoming buff basally with maturity, finally entirely buff except for violaceous tints at extreme apex; flesh concolorous with exterior; basal mycelium pallid violaceous. SPORES: spore print white when fresh; spores globose to subglobose, apiculate, hyaline, inamyloid, coarsely echinulate, 10.5-14.5 µm diam. including spines, spines 2-3.5 µm long, to 2.5 µm diam. basally. HYMENIUM: basidia hyaline, stout, broadly cylindrical to clavate, 30-41 X 7.5-12 µm, 4-spored, sterigmata to 9 µm long; paraphyses numerous, simple or sparingly branched, filamentous, to 3 µm diam., projecting beyond basidia. HYMENOPHORAL TRAMA: regular, composed of tinted, ± parallel, long-celled hyphae; clamp connections present. CONTEXT OF PILEUS: thin, concolorous with exterior. SMELL AND TASTE: not distinctive. CHEMICAL CHARACTERS: FeSO4 on pileus and context—rapidly dark grey; KOH and NH4OH on pileus and context—no reaction.

Habitat

Densely gregarious to caespitose under Nothofagus.

Illustrations

Stevenson, Kew Bull. 19: 10, fig. 6, (right hand spore); pi, I, fig. 5, (left hand group). 1964.

Notes

Stevenson (1964) included two distinct species in her original description and illustrations of Laccaria masonii. one with a glabrous, violaceous to buff coloured pileus. and the other with a radially fibrillose pileus. The type collection consists solely of fructifications with gabrous pilei and the name is accordingly restricted to this species. The second species is described under L. fibrillosa.

L. masonii is characterised by violaceous fructifications when young, coarsely spinose spores, and the absence of radial markings on the pileus. Although the violaceous tints disappear with maturity, the species may still be recognised by the spore ornamentation. L. masonii is restricted to southern beech forests.

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

Laccaria masoniae G. Stev. 1964

Description

Pileus 0.5-3 cm diam., fawn with or without lilac tints, occasionally with overlying fulvous or fuscous fibrils, striate, hemispheric rarely becoming plane, sharply umbonate, or umbilicate or both. Gills adnexed, seceding, distant, mealy, lilac or buff. Stipe 3-8 x 0.1-0.3 cm, lilac or fawn, hollow, subfibrous, often twisted, firmly bound to moss or litter by a weft of hyphae at base. Spores 7-10 µm diam., non-amyloid, thick-walled, with spines 2-3 µm long.

Habitat

HABITAT: attached to moss or litter under Nothofagus solandri and N. cliffortioides, Wairarapa, 27.6.1949. Stevenson; Silverstream, 19.7.1949. Stevenson (type); Maitai, 20.6.1956, Stevenson; Arthur's Pass, 7.6.1954, R. Mason.

Latin

Pileus 0.5-3 cm diam., hinnuleus interdum lilacino-tinctus, rarius fibrillis fulvis vel fuscis obductus, striatus, hemisphaericus raro demum planus, acute umbonatus et/vel umbilicatus. Lamellae adnexae, secedentes, distantes, farinosae, lilacinae vel bubalinae. Stipes 3-8 x 0.1-0.3 cm lilacinus vel hinnuleus, cavus, subfibrosus, saepe tortus, basi ope pannuli hypharum muscis vel materiebus aliis humistratis firme adnexus. Sporae 7-10 µm diam., haud amyloideae, parietibus crassis, spinis 2-3 µm longis.

Typification

Typus: Stevenson 733