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 Antrodiella rata
SynonymsPoria rata
Poria subcrassa
BiostatusPresent in region - Indigenous. Endemic
Article: Cunningham, G.H. (1947). New Zealand Polyporaceae. 1. The genus Poria. New Zealand Department of Scientific and Industrial Research, Plant Diseases Division, Bulletin 72: 43 p.
Description: Hymenophore to 8 x 4 cm., 6-10 min. thick, firm, horny, hard, wood-coloured when dry; margin
tapering, irregular, to 2 mm wide, floccose, not lifting, cream coloured; surface even, compact,
dissepiments not toothed. Pores wood-coloured in section, stratose, round or slightly angular, to
4 mm. deep, each layer separated by a black line 0.5 mm. thick, 50-150 µ diameter, or 7-9 to
mm.; dissepiments 30-100 µ thick, apex tapering, appearing as a firm even layer, of cemented
parallel hyphae, not velutinate. Context to 0.8 mm. thick, thinner when old, white or isabelline,
hyphae parallel or slightly woven, passing unchanged into the dissepiments; skeletal hypha 3-4 µ
thick, thick-walled, lumen often almost obliterated, hyaline, aseptate, sparsely branched near
ends, irregular; generative hyphae to 2 µ thick, branched, septate, thin-walled, clamp connections
present. Basidial type clavate, basidia clavate, to 10 x 4 µ, soon collapsing. Spores ovate,
elliptical, or pip-shaped, 3.5-4 x 2-2.5 µ, smooth, hyaline.
Habitat: P>Metrosideros robusta A.Cunn., on decorticated fallen trunk lying on the forest floor.
Distribution: New Zealand.
Notes: Characters of the species are the firm, horny, wood-coloured hymenophore (when dry), stratose
minute pores with layers differentiated by a black line, thin dissepiments, aseptate sparsely
branched skeletal hyphae with almost obliterated lumen, clavate basidia and small ovate or
elliptical spores. The specific name is taken from the Maori name applied to the host.
Article: Cunningham, G.H. (1965). Polyporaceae of New Zealand. New Zealand Department of Scientific and Industrial Research, Bulletin 164: 304 p. Wellington:.
Description: Hymenophore biennial or perennial, loosely attached,
effused forming irregular linear areas 3-7 x 2-5 cm, 2-5 mm thick, obscurely
stratose. Hymenial surface even, dull white drying dingy buff, not creviced;
margin abrupt, 1-3 mm wide, white, fibrillose, adherent, base almost black.
Pores in 2-3 vague layers, round or subangular, 4-5 per mm, 50-150 µm diameter,
1-2 mm deep in each layer, stuffed when old; dissepiments 50-100 µm,thick,
equal, at first finely velutinate at apices, becoming even. Context dull white,
0.5-1 mm thick, of densely intertwined hyphae embedding numerous crystals;
skeletal hyphae 2.5-3 µm diameter, lumena almost obliterated, sparsely branched,
irregularly waved, aseptate ; generative hyphae 2-2.5 µm diameter, walls 0.25 µm
thick, branched, septate, with abundant clamp connections. Hymenial layer to 16
µm deep, a close palisade of basidia and paraphyses. Basidia subclavate, 8-12 x
3.5-4 µm, bearing 4 spores; sterigmata erect, to 4 µm long. Paraphyses
subclavate, 6-10 x 3-3.5 µm. Spores cylindrical or allantoid, 3-3.5 x 1-1.5 µm,
walls smooth, hyaline, 0.1 µm thick.
Habitat: HABITAT: Decorticated fallen trunks,
associated with a white rot.
Distribution: DISTRIBUTION: Australia,
Tasmania.
Notes: Although the type is sterile, the
collection from Victoria bears spores as described and matches the type in other
features. Identified by the vaguely stratose pores, soft white context,
irregular skeletal hyphae with almost capillary lumena, and small allantoid
spores. Pores of old layers are stuffed, and sometimes plants are rigid with
hyphae cemented with mucilage as in those of P. rata. In the hymenium
of the type collection are numbers of fusiform paraphysate hyphae with delicate
aeuminate apices; but these are wanting in the Victorian specimen. Bases of
plants, which are loosely attached, are fuscous or almost black, a few of the
basal hyphae possessing discoloured walls.
Article: Buchanan, P.K.; Ryvarden, L. (1988). Type studies in the Polyporaceae - 18. Species described by G.H. Cunningham. Mycotaxon 31(1): 1-38.
Notes: This is a species of Antrodiella Ryv. & Johans. because of the dense basidiocarp, dimitic hyphal
system, small spores, and minute pores with a resinous appearance. It is separated from other
species in the genus by the black lines between successive strata of the tubes and by the thickness of
the basidiocarp (to 2.5 cm thick). In some collections, scattered, dark-brown, granular deposits are
present on walls of the skeletal hyphae. The spores are slightly larger and the pores smaller than
those of A. semisupina (Berk. & Curt.) Ryv., the type species.
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