Download Copy a link to this page Cite this record

Amanita pekeoides G.S. Ridl. 1991

Scientific name record
Names_Fungi record source
Is NZ relevant
This is the current name
This record has collections
This record has descriptions
This is indigenous

Click to collapse Details Info

Amanita pekeoides G.S. Ridl., Austral. Syst. Bot. 4 333 (1991)
Amanita pekeoides G.S. Ridl. 1991

Click to collapse Biostatus Info

Endemic
Present
New Zealand
Political Region

Click to collapse Nomenclature Info

G.S. Ridl.
G.S. Ridl.
1991
333
ICN
Amanita pekeoides G.S. Ridl. 1991
NZ holotype
species
Amanita pekeoides

Click to collapse Classification Info

pekeoides

Click to collapse Vernacular names Info

Click to collapse Descriptions Info

Amanita pekeoides G.S. Ridl. 1991

Basidiocarps small to medium, solitary to subgregarious. Pileus 32-82 mm, convex to plano-convex, then plano-depressed, with sulcate margin (0.17-0.31 R), entire, occasionally splitting along furrows, disc hazel to dark greyish sepia, paling to greyish sepia at margin, sulcate ridges concolorous with disc, furrows pale greyish sepia or vinaceous buff, slightly viscid when wet, quickly drying, volva remnants absent. Lamellae crowded, free, 6-10 mm wide, pale buff to buff, margin entire, brown vinaceous to dark greyish sepia at margin; lamellulae truncated. Stipe 70-120 mm high, 7-10(-17) mm diameter, hollow, tapering apically, surface pale greyish sepia, with hazel to greyish sepia, striate bands, becoming finer and more numerous towards apex. Exannulate. Volva 30-58 mm high, fleshy when young, 1-3 mm thick, becoming membranous with age, saccate, usually bilabiate, buff with ochreous to fulvous stains, with small, membranous, inner limb. Context in pileus white, pale brown vinaceous to pale sepia beneath disc, stipe white.

Spore print white. Basidiospores (520/38), (9.5-)10.5-14.5(-20) x (9-)10.5-14.5(-18) µm, Qm 1.00, Q 1.00-1.14, globose to subglobose, thin-walled, hyaline, inamyloid. Basidia 50-92.5 x 10.5-22.5 µm, 1-4-spored, not clamped. Lamella margin cells 12-58(-70) x 9-50 µm, globose, clavate, napiform, sphaeropedunculate, usually hyaline, rarely pale umber. Pileipellis consisting of 20-40 µm wide, slightly gelatinised suprapellis, non-gelatinised subpellis. Volva trama in three layers, outer layer regular, central layer subregular and occasional interspersed with clavate cells, inner layer regular.

Two distinct variations from the norm have been observed and for convenience are referred to as 'individuals with friable volva' and 'white individuals'.

Individuals with friable volva. As above but pileus and stipe with felted patches of greyish sepia to dark greyish sepia volva remnants. Volva remnants composed of abundant, terminal, pale umber, globose to clavate cells, 26.5-82 x 20-78 µm, single or in short chains, on abundant, pale umber, branching hyphae, 6-11 µm wide, tending to vertically orientated (Fig. 4d, h).

White individuals. As above but pileus white to sordid white.

The characters of this variety are dark-grey colour of cap and stipe; grey gills with finely serrulate margins which in the New Zealand collection were also dark-grey on the serrulate edges. Gilbert gives exceptional variations for spore size, 10.4-14 x 17-18um. Spores of the New Zealand collection, which otherwise agrees with this variety, were 12um diam., corresponding with typical A. vaginata. The original publication of Cleland & Cheel has a colour plate with distinctly reddish colouration, not agreeing exactly with the description. The New Zealand form illustrated here is darker.
under Nothofagus solandri, Nelson, 5.3.1955, Stevenson.
This variety is distinguished by a brown coloured cap and stipe, spores globose 12-16um diam. The New Zealand collections had medium brown cap and stipe, spores globose, 12um diam.
under second growth scrub, Wellington, 3.5.1951, Stevenson; under Jvothofagus solandri, Taita, 18.3.1958, Stevenson; under N. solandri Muritai, 29.3.1958, Marie Taylor.

Click to collapse Taxonomic concepts Info

Agaricus vaginatus sensu Colenso (1887) [1886]
Amanita pekeoides G.S. Ridl. 1991
Amanita pekeoides G.S. Ridl. 1991
Amanita pekeoides G.S. Ridl. 1991
Amanita pekeoides G.S. Ridl. 1991
Amanita pekeoides G.S. Ridl. (1991)
Amanita pekeoides G.S. Ridl. 1991
Amanita pekeoides G.S. Ridl. (1991)
Amanita pekeoides G.S. Ridl. 1991
Amanita pekeoides G.S. Ridl. (1991)
Amanita pekeoides G.S. Ridl. 1991
Amanita pekeoides G.S. Ridl. (1991)
Amanita pekeoides G.S. Ridl. 1991
Amanita pekeoides G.S. Ridl. (1991)
Amanita pekeoides G.S. Ridl. 1991
Amanita pekeoides G.S. Ridl. (1991)
Amanita pekeoides G.S. Ridl. 1991
Amanita pekeoides G.S. Ridl. 1991
Amanita pekeoides G.S. Ridl. (1991)
Amanita pekeoides G.S. Ridl. 1991
Amanita pekeoides G.S. Ridl. (1991)
Amanita pekeoides G.S. Ridl. 1991
Amanita pekeoides G.S. Ridl. (1991)
Amanita pekeoides G.S. Ridl. 1991
Amanita pekeoides G.S. Ridl. (1991)
Amanita pekeoides G.S. Ridl. 1991
Amanita pekeoides G.S. Ridl. 1991
Amanita pekeoides G.S. Ridl. (1991)
Amanita vaginata sensu G. Stev. (1962)
Amanita pekeoides G.S. Ridl. 1991
Amanita vaginata var. punctata sensu G. Stev. (1962)
Amanita vaginata var. punctata sensu G. Stev. (1962)
Amanita pekeoides G.S. Ridl. 1991
Amanita vaginata var. punctata sensu G. Stev. (1962)
Amanita vaginata var. umbrinolutea sensu G. Stev. (1962)
Amanita vaginata var. umbrinolutea sensu G. Stev. (1962)
Amanita vaginata var. umbrinolutea sensu G. Stev. (1962)
Amanita pekeoides G.S. Ridl. 1991
Amanita vaginata var. umbrinolutea sensu G. Stev. (1962)
Amanita vaginata var. umbrinolutea sensu G. Stev. (1962)

Click to collapse Collections Info

Amanita pekeoides G.S. Ridl. 1991
New Zealand
Auckland
Amanita pekeoides G.S. Ridl. 1991
New Zealand
Buller
Amanita pekeoides G.S. Ridl. 1991
New Zealand
Coromandel
Amanita pekeoides G.S. Ridl. 1991
New Zealand
Dunedin
Amanita pekeoides G.S. Ridl. 1991
New Zealand
Fiordland
Amanita pekeoides G.S. Ridl. 1991
New Zealand
Gisborne
Amanita pekeoides G.S. Ridl. 1991
New Zealand
Kaikoura
Amanita pekeoides G.S. Ridl. 1991
New Zealand
Marlborough Sounds
Amanita pekeoides G.S. Ridl. 1991
New Zealand
Mid Canterbury
Amanita pekeoides G.S. Ridl. 1991
New Zealand
Nelson
Amanita pekeoides G.S. Ridl. 1991
New Zealand
North Canterbury
Amanita pekeoides G.S. Ridl. 1991
New Zealand
Northland
Amanita pekeoides G.S. Ridl. 1991
New Zealand
Taupo
Amanita pekeoides G.S. Ridl. 1991
New Zealand
Wairarapa
Amanita pekeoides G.S. Ridl. 1991
New Zealand
Wanganui
Amanita pekeoides G.S. Ridl. 1991
New Zealand
Wellington
Amanita pekeoides G.S. Ridl. 1991
New Zealand
Westland

Click to collapse Notes Info

taxonomic status
based on Amanita vaginata sensu Colenso, 1886, also G. Stev., 1962, p.p.; Amanita vaginata var. punctata sensu G. Stev., 1962, also G.M. Taylor, 1970; and Amanita vaginata var. umbrinolutea sensu G. Stev., 1962, p.p.
taxonomic status
Sequencing indicates Ridley's concept includes two taxa. One has brown lamellar edges in which hyphae form a band on the gill edge. The holotype has this feature. The second taxon (A. drummondii cf) has distinct brown pyrifom cheilocystidia (as figured in Ridley's 4f for Stevenson 969). Both taxa are associated with beech and tea-tree. [JAC]

Click to collapse Metadata Info

1cb17d47-36b9-11d5-9548-00d0592d548c
scientific name
Names_Fungi
1 January 2000
27 October 2022
Click to go back to the top of the page
Top