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Rossbeevera pachydermis (Zeller & C.W. Dodge) T. Lebel in Lebel et al., Fungal Diversity 52 64 (2012)
Rossbeevera pachydermis (Zeller & C.W. Dodge) T. Lebel 2012

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Endemic
Present
New Zealand
Political Region
Australian records are in error.

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(Zeller & C.W. Dodge) T. Lebel
Zeller & C.W. Dodge
T. Lebel
2012
64
Rosbeeva pachyderma
ICN
species
Rossbeevera pachydermis

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pachydermis

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VICTORIA. Otway Range, Triple Falls, Phillips Track, hypogeal in mixed eucalyptus forest, 22 Sept. 1982, K & G. Beaton 57.
NEW ZEALAND. Wellington, Chateau Tongariro, April 1931, J. Carter ( type of G. novaezelandiae, K); Horopito, Mangatorutoru Stream, March 1948, J. M. Dingley.
U.S.A. Oregon, Benton County, 14 Nov. 1924, S. M Zeller 2260, ex herb. Hawker.
Gasterocarp 0.5-3 cm diam., subglobose, pyriform to ellipsoid or irregular, lobed, with basal attachment. Peridium whitish to ochraceous, with a distinctly greenish yellow tint, not cyanescent on bruising, smooth and glabrous. Gleba pale brown drying to dark brown, firm, loculate, consisting of irregular, partially filled, minute chambers. Tramal plates variable, mostly about 100µm thick, consisting of a broad, hyaline hymenophoral trama and very narrow subhymenial layers; peridial context well developed, forming a thick layer, similar in structure to the hymenophoral trama; clamp-connexions absent. Columella very reduced, occasionally forming very short radiating branches; sterile base present but small and inconspicuous. Spores 10.5-15 x 6-7.5 (12 ±0.5 x 7 ± 0.5) µm (excl. costae), Q = 1.71; symmetric, ellipsoid to short fusoid, sometimes with a papillate apex, deep rusty brown, with a thickened wall, smooth but forming four or five longitudinal costae, overlaid by a hyaline myxosporium which sometimes becomes detached at the base. Basidia 15-20 x 7.5-9µm, clavate to cylindric, bearing four, sometimes two, sterigmata. Hymenophoral trama regular, hyaline, non-gelatinized, of parallel, thinwalled hyphae, 2-10 µm diam. Subhymenial layer very narrow, interwoven. Peridiopellis a repent epicutis, 50-75 µm thick, of subparallel or partial woven hyaline, thin-walled hyphae, 3-10 µm diam.
This species has been described from New Zealand under two separate names, Hymenogaster pachydermis Zeller & Dodge and Gautieria novaezelandiae G. H. Cunn. Cunningham (1944: 67) listed H. pachydermis as a synonym under Hysterangium schlerodermun (Cooke) G. H. Cunn., but examination of the authentic collection by Zeller reveals it to have the pigmented, costate spores of a Chamonixia species as originally described. Chamonixia pachydermis differs from C. mucosa in the non-cyanescent, greenish peridium and the more deeply coloured spores.
Plants solitary or caespitose, tuberiform or pyriform, 2-5 cm. .diameter, from yellow ochre to brilliant iodine green, drying pallid ferruginous. Peridium 400-600 microns thick, of a single pseudoparenchymatous layer, white or cream coloured in section. Gleba chocolate brown, appearing compact, cells minute, 2-3 to mmm.; subglobose, empty; columella reduced to a few tenuous branches arising from a small sterile base, but conspicuous in developing plants; tramal plates 15-50 microns thick, of gelatinized hyphae, thinner towards the centre and tending to disappear at maturity; basidia 4-spored. Spores elliptical, 11-15 x 8-10 microns, golden brown, apex bluntly pointed, base shortly pedicellate, with 4-5 longitudinal ribs which are rounded and about 2 microns tall.
Distribution: Tongariro National Park, Mrs. T. Carter. type collcetion : Mt. Reeves, Tararua Range, T. C. Birch; York Bay, E. H. Atkinson; Day's Bay. H. Cook, C., H. C.
Type: Mycorrhizal Fungi; Description: Basidiomata epigeous or subepigeous, subglobose to pyriform, ochraceous to bright greenish brown, up to 25 mm in diameter; peridium composed of a single white to cream pseudoparenchymatous layer. Gleba chocolate brown, compact; columella reduced to a few tenuous branches. Basidiospores elliptical, 0-septate, 10–15 × 8–10 μm, with 4–5 longitudinal ribs, golden brown.
Distribution: Auckland, Coromandel, Waikato, Bay of Plenty, Taupo, Wellington, Nelson, Gisborne, Buller, Westland, Fiordland, Marlborough Sounds, North Canterbury, Mid Canterbury, Otago Lakes, Southland.; 1st Record: Chu-Chou & Grace (1983b: as Gauteria novaezelandiae).
Significance: Recorded as a close associate of Nothofagus spp. (Chu-Chou & Grace 1983b).; Host(s): Nothofagus fusca, N. menziesii, N. solandri var. solandri, N. solandri var. cliffortioides, N. truncata.

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Chamonixia pachydermis (Zeller & C.W. Dodge) G.W. Beaton, Pegler & T.W.K. Young
Chamonixia pachydermis Zeller & C.W. Dodge
Rossbeevera pachydermis (Zeller & C.W. Dodge) T. Lebel 2012
Chamonixia pachydermis (Zeller & C.W. Dodge) G.W. Beaton, Pegler & T.W.K. Young (1985)
Chamonixia pachydermis (Zeller & C.W. Dodge) G.W. Beaton, Pegler & T.W.K. Young (1985)
Chamonixia pachydermis (Zeller & C.W. Dodge) G.W. Beaton, Pegler & T.W.K. Young (1985)
Gautieria novae-zelandiae G. Cunn. 1938
Gautieria novae-zelandiae G. Cunn.
Rossbeevera pachydermis (Zeller & C.W. Dodge) T. Lebel 2012
Hymenogaster pachydermis Zeller & C.W. Dodge
Rossbeevera pachydermis (Zeller & C.W. Dodge) T. Lebel 2012
Hysterangium sclerodermum sensu G. Cunn.
Rossbeevera pachydermis (Zeller & C.W. Dodge) T. Lebel 2012
Rossbeevera pachydermis (Zeller & C.W. Dodge) T. Lebel 2012
Rosbeeva pachydermis (Zeller & C.W. Dodge) T. Lebel
Rossbeevera pachydermis (Zeller & C.W. Dodge) T. Lebel 2012
Rossbeevera pachydermis (Zeller & C.W. Dodge) T. Lebel 2012

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Rossbeevera pachydermis (Zeller & C.W. Dodge) T. Lebel 2012
[Not available]

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ad040fd2-d347-4d14-81ff-f11725a4385c
scientific name
Names_Fungi
20 June 2011
9 January 2012
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