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Porpoloma amyloideum (G. Stev.) E. Horak 1971

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Porpoloma amyloideum (G. Stev.) E. Horak, New Zealand J. Bot. 9 407 (1971)
Porpoloma amyloideum (G. Stev.) E. Horak 1971

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Endemic
Present
New Zealand
Political Region

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(G. Stev.) E. Horak
G. Stev.
E. Horak
1971
407
ICN
NZ holotype
species
Porpoloma amyloideum

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amyloideum

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[GS] Pileus 4-6 cm. diam., luteous more or less covered with brownish-red (claret brown) fibrils, broadly convex at first, becoming plane to shallow concave; flesh yellow. Gills sinuate, moderately crowded, yellow becoming tinged brownish red. Stipe 4-7 x 1 cm., yellow overlain with a few reddish fibrils, smooth, striate, tending to split lengthwise, solid, with a conspicuous inferior membranous ring. Spores 7-8 x 4x5-6.5um, amyloid, hyaline, thinwalled (Fig. 1/27, p. 10); print white. Cuticle of loosely woven hyphae 10um diam., with clamp connections and internal pigment. A definite fishy smell develops in older specimens. HABITAT: under Nothofagus, Butterfly, 10.7.1949, Stevenson (type); Nelson, 12.7.1949, A. Crawford; Catchpole, 3.5.1958, Stevenson. [EH] This is the first record of the South American genus Porpdoma in New Zealand. [JAC] Pat commented that amyloid reaction in this material could not be seen in spores. However it is strong. The hymenium has occasional basidia with purple content in KOH, exactly like recent collections. Cheilocystidia are not as obvious as later collections, but not many gill edges are left in surviving material. Cap also with purple terminal elements in KOH, and clearly clamped.

Porpoloma amyloideum (G. Stev.) E. Horak 1971

Tricholoma amyloideum Stevenson (29 D) = Porpoloma amyloideum (Stevenson) comb. nov. (Basionym: T. amyloideum Stevenson, Kew Bull. 19: 15, 1964)

This is the first record of the South American genus Porpoloma in New Zealand.

Pileus 4-6 cm diam., luteous more or less covered with brownish-red (claret brown) fibrils, broadly convex at first, becoming plane to shallow concave; flesh yellow. Gills sinuate, moderately crowded, yellow becoming tinged brownish red. Stipe 4-7 x 1 cm, yellow overlain with a few reddish fibrils, smooth, striate, tending to split lengthwise, solid, with a conspicuous inferior membranous ring. Spores 7-8 x 4.5-6.5 µm, amyloid, hyaline, thin-walled (Fig. 27); print white. Cuticle of loosely woven hyphae 10 µm diam., with clamp connections and internal pigment. A definite fishy smell develops in older specimens.
Under Nothofagus, Butterfly, 10.7.1949, Stevenson (type); Nelson, 12.7.1949, A. Crawford, Catchpole, 3-5-1958, Stevenson.
Pileus 4-6 cm diam., luteus vel fibrillis brunneo-rubris plus minus obtectus, primum late convexus, deinde planus usque leviter concavus; came flava. Lamellae sinuosae, modice confertae, flavae deinde brunneo-rubro-tinctae. Stipes 4-7 x 1 cm, flavus, fibrillis paucis rubidis obductus, laevis, striatus, facile longitudinaliter fissus, solidus, annulo infero membranaceo conspicuo praeditus. Sporae 7-8 x 4.5-6.5 µm, amyloideae, hyalinae, parietibus tenuibus; in cumulo albae. Cuticula ex hyphis laxe intertextis 10 µm diam. sistens, cum fibrillis et pigmento interno. Specimina vetustiora saepe manifeste pisciodora.
Spores amyloid
Typus: Stevenson 713

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Dermoloma amyloideum (G. Stev.) G. Stev. (1982)
Porpoloma amyloideum (G. Stev.) E. Horak 1971
Porpoloma amyloideum (G. Stev.) E. Horak 1971
Porpoloma amyloideum (G. Stev.) E. Horak 1971
Porpoloma amyloideum (G. Stev.) E. Horak 1971
Porpoloma amyloideum (G. Stev.) E. Horak (1971)
Porpoloma amyloideum (G. Stev.) E. Horak 1971
Porpoloma amyloideum (G. Stev.) E. Horak (1971)
Porpoloma amyloideum (G. Stev.) E. Horak 1971
Porpoloma amyloideum (G. Stev.) E. Horak (1971)
Porpoloma amyloideum (G. Stev.) E. Horak 1971
Porpoloma amyloideum (G. Stev.) E. Horak (1971)
Porpoloma amyloideum (G. Stev.) E. Horak 1971
Tricholoma amyloideum G. Stev. (1964)
Porpoloma amyloideum (G. Stev.) E. Horak 1971

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Porpoloma amyloideum (G. Stev.) E. Horak 1971
New Zealand
Buller
Porpoloma amyloideum (G. Stev.) E. Horak 1971
New Zealand
Nelson
Porpoloma amyloideum (G. Stev.) E. Horak 1971
New Zealand
Waikato

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1cb1b778-36b9-11d5-9548-00d0592d548c
scientific name
Names_Fungi
1 January 2000
15 December 2003
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