Hymenophore resupinate, annual, reviving a second season, membranous, becoming brittle, adnate, at first composed of numerous irregularly orbicular colonies 2-10 mm diameter, becoming merged to form linear areas to 7 x 2 cm. Hymenial surface bright cinnamon, darker towards the centre, finely tuberculate, velutinate, becoming deeply areolately creviced; margin thinning out, fibrillose, light cinnamon or fulvous, adnate. Context fulvous, 110-250 µ thick, of loosely intertwined hyphae bordered on the abhymenial surface by a narrow coloured cortex of loosely intertwined hyphae, without abhymenial hairs; hyphal system monomitic; generative hyphae 2-2.5 µ diameter, walls 0.25 µ thick, pallid yellow brown, freely branched, septate. Setal layer to 130 µ deep, composed of fascicles of 4-12 setae arising in the subhymenium, mainly in the tubercules, of scattered setae forming 2-3 vague overlapping rows, and of setae scattered in the context and arising from its base; setae projecting to 50 µ, subulate, some narrowly fusiform, 40-80 x 6-9 µ, walls naked, yellow brown, lumina narrow. Hymenial layer to 30 µ deep, hyaline, a close palisade of basidia and paraphyses. Basidia subclavate, 14-18 x 4-5 µ, 4-spored; sterigmata slender, arcuate, to 6 µ long. Paraphyses subclavate, same diameter but shorter than the basidia. Spores elliptical or obovate, 5-6.5 x 3-3.5 µ, walls smooth, hyaline, 0.2 µ thick.

DISTRIBUTION: New Zealand.

HABITAT: Effused on bark of dead branches associated with a white rot.

Resupinata, annua, iterum renascens, membranacea, deinde fragilis, adnata. Superficies hymenii clare cinnamomea, subtiliter tuberculata, alte areolata rimosa; margine fibrilloso, fulvo vel pallide cinnamomeo, adnato. Contextus hypharum laxe intertextarum, fulvus; cortex hypharum parallelarum laxe ordinatarum adest. Hypharum systema monomiticum. Setarum stratum 2-3 ordinibus partim superimpositis. Setae superiores partim in fasciculis 4-12 ordinatae, subulatae vel anguste fusiformes, ad 50 µ eminentes, nudae, 40-80 x 6-9 µ. Basidia subclavata, 14-18 x 4-5 µ, 4 sporis ellipticas vel obovatis, 5-6.5 x 3-3.5 µ.

Fascicles of setae arise mainly from tubercules in bundles of 3-12, with solitary setae between; scattered setae are also present in the context. The cortex is without abhymenial hairs, and composed of compacted, partly cemented parallel hyphae. From H. lictor the species is separated by the tuberculate surface of different colour, narrower context hyphae with thinner walls, different structure of the cortex, greater number of setae in the fascicles, differently shaped basidia and paraphyses.

Beilschmiedia tawa (A.Cunn.) Hook.f. & Benth. Wellington: Carter's Bush, Carterton, 150ft, December 1952, G.H.C., type collection, P.D.D. herbarium, No. 12466