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Grifola rosulata (G. Cunn.) G. Cunn. 1965

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(G. Cunn.) G. Cunn.
G. Cunn.
G. Cunn.
1965
93
ICN
NZ holotype
species
Grifola rosulata

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rosulata

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Grifola rosulata (G. Cunn.) G. Cunn. 1965

MIMOSACEAE. Acacia dealbata: Canterbury, Ashburton, 30 m. PINACEAE. Pinus radiata: Auckland, Woodhill, 120 m; Kaingaroa State Forest, 600 m, type collection, P.D.D. herbarium, No. 5691. UNKNOWN HOSTS. Victoria; Realesville. Tasmania, Port Arthur.
Hymenophore annual, coriaceous, compound, composed of numerous pilei (7-30) arising from a common base, frequently densely imbricated, sometimes rosetted. Pilei flabelliform or sometimes spatulate, 1-3 cm wide, 0 .5-2.5 cm radius, 2-5 mm deep, often laterally attached to one another, erect or horizontal; pileus surface fawn or bay with umber zones, radiately striate; without a cortex; margin acute, inturned, crenate, dentate; hymenial surface white or cream, even, sterile border to 2 mm wide. Pores in section white or cream, round, elongated or angular, decurrent, 5-7 per mm (3-4 per mm when decurrent), 100-250 µm diameter, to 1.5 mm deep; dissepiments 50-100 µm thick, equal, apices even or dentate. Context white, 0.25-1.5 mm thick, of closely compacted radiately arranged hyphae ; generative hyphae 5-6 µm diameter, walls 0.5-1.5 µm thick, freely septate, sparsely branched, with clamp connections, encrusted with mucilage granules; conducting hyphae 5-7µm diameter, walls 0.2 µm thick, sparingly septate, contents staining; Hymenial layer to 12 µm deep, a dense palisade of basidia and paraphyses partly embedded in mucilage. Basidia subclavate, 10-12 x 4-5 µm, bearing 4 spores; sterigmata erect, to 4 µm long. Paraphyses subclavate or subcylindrical, 6-10 x 3-5.4 µm. Spores broadly elliptical, oblong with rounded ends, or sometimes pip-shaped, 3.5-4 x 2-2.5 µm, walls smooth, hyaline, 0.2 µm thick.
New Zealand, Tasmania, Australia.
Caespitose upon fallen decayed logs, bases of stumps, soil on the forest floor, or burnt wood.
In its typical form the species may be recognised by the small, thin, flaccid coriaceous pilei, small pares, colour of pores and pilei, and small hyaline spores. Context hyphae bear numerous mucilage granules and are often embedded in mucilage, as are basidia and paraphyses. When decurrent, pore orifices are dentate, but are even elsewhere. Australian and Tasmanian specimens examined are lighter in colour, flabelliform rather than rosulate, but agree in microfeatures.

LOCALITY: Kaingaroa Plains, Auckland.

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Grifola rosulata (G. Cunn.) G. Cunn. 1965
Grifola rosulata (G. Cunn.) G. Cunn. (1965)
Grifola rosulata (G. Cunn.) G. Cunn. 1965
Grifola rosulata (G. Cunn.) G. Cunn. (1965)
Grifola rosulata (G. Cunn.) G. Cunn. 1965
Grifola rosulata (G. Cunn.) G. Cunn. (1965)
Grifola rosulata (G. Cunn.) G. Cunn. 1965
Grifola rosulata (G. Cunn.) G. Cunn. 1965

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Grifola rosulata (G. Cunn.) G. Cunn. 1965
Australia
Grifola rosulata (G. Cunn.) G. Cunn. 1965
New Zealand
Auckland
Grifola rosulata (G. Cunn.) G. Cunn. 1965
New Zealand
Bay of Plenty
Grifola rosulata (G. Cunn.) G. Cunn. 1965
New Zealand
Mid Canterbury

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1cb18bfd-36b9-11d5-9548-00d0592d548c
scientific name
Names_Fungi
14 February 1995
15 December 2003
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