ARALIACEAE. Pseudopanax crassifolium: Wellington, Ruahine Ranges, 600 m. COMPOSITAE. Olearia furfuracea: Auckland, Cascade Kauri Park, Waitakere Ranges, 250 m. CONIFERAE. Cupressus macrocarpa: Auckland, Campbells Bay, 80 m. Phyllocladus alpinus: Canterbury, Arthur's Pass, 850 m. EPACRIDACEAE. Cyathodes fasciculata: Auckland, Waipoua Kauri Forest, 200 m. FAGACEAE. Nothofagus cliffortioides: Nelson, Lake Rotoiti, 700 m. LAURACEAE. Beilschmiedia tarairi: Auckland, Awhitu Peninsula, 100 m; Karekare, Waitakere Ranges, 280 m. Beilschmiedia tawa: Auckland, Claudelands Reserve, Hamilton, 45 m; Lake Okataina, 500 m. Wellington, Ballance Reserve, 35 m; Lake Papaitonga, 20 m; Weraroa, 25 m. MALVACEAE. Hoheria populnea: Auckland, Mt. Eden, 120 m. Plaginathus betulinus: ^{Wellington, Upper Pohangina River, 400 m; Totara Reserve, Pohangina Valley, 45 m; Carters Reserve, Carterton, 50 m. MIMOSACEAE. Albizzia lophantha: Auckland, Campbells Bay, 85 m. MYRTACEAE. Leptospermum ericoides: Auckland, Whangarei Heads. Metrosideros excelsa: Auckland, Chicken Island, 10 m. RUBIACEAE. Coprosma crenulata: Auckland, North-east King Island. RUTACEAE. Melicope ternata: Auckland, North-east King Island. SAPINDACEAE. Alectryon excelsus: Wellington, Carters Reserve, Carterton, 50 m. VERBENACEAE. Vitex lucens: Auckland, Huia, 10 m. VIOLACEAE. Melicytus ramiflorus: Wellington, Upper Pohangina River, 300 m; Ruahine Ranges, 400 m. UNKNOWN HOSTS. Auckland, Waipoua Kauri Forest, 250 m; Swanson, 120 m; Birkenhead Kauri Park, 35 m; Kohukohunui Ridge, Hunua Ranges, 300 m; Huia, 10 m. Canterbury, Riccarton Bush. South Australia, Meningie; Kangaroo Island; Millicent; Mt. Burr. New South Wales, near Sydney, Wingham.}

Hymenophore perennial, stratose, membranous, adherent, effused forming irregular areas to 30 x 7 cm, with a few orbicular, scattered, outlying islands; hymenial surface cream, alutaceous, or pallid buff, resembling chamois leather, not creviced; margin at first thinning out, soon becoming cliff-like, or receding, adherent, concolorous or pallid tan when old. Context varying in thickness with age, 0.1-1.5 mm thick, tan or isabelline, composed of numerous (5-20) layers differentiated by bands of generative hyphae, parallel branches of skeletal hyphae, scattered crystals, or thinning of the tissues; basal layer narrow, of parallel hyphae closely compacted, intermediate layer of erect branched skeletal hyphae embedding crystals which may be compacted into vertical lenses; skeletal hyphae with erect stems traversing the context, producing lateral branches which may be straight or curved, at the surface becoming entwined laterally and covering the hymenium, 3-4.5 µm diameter, walls 0.5-2 µm thick, aseptate, naked; generative hyphae 2.5-3 µm diameter, walls 0.2 µm thick, naked, with clamp connections. Gloeocystidia absent. Hymenial layer composed of scattered groups of basidia and paraphyses. Basidia cylindrical, 20-32 x 5-6 µm, bearing 2-4 spores; sterigmata erect, slender, to 5 µm long. Paraphyses scanty, subclavate, 12-22 x 3-4 µm. Spores globose or subglobose, some apiculate, 4.5-6 µm diameter, walls hyaline, smooth, 0.2 µm thick, nonamyloid.

DISTRIBUTION: North and South America, Europe, East and West Indies, Australia, New Zealand.

HABITAT: Bark and decorticated wood of dead branches.

Skeletal hyphae, which form the bulk of the context, are thick-walled, aseptate, and stain deeply. They arise as upright stems with lateral branches projecting at intervals, in whorls, binding the context into a compact tissue. Basidia are delicate, cylindrical, embedded among curved branches of the skeletal. hyphae, arise in small groups, and collapse as soon as spores mature. Old specimens are stratose and composed of several layers visible under a lens. In both macrostructure and microstructure the species resembles Scytinostroma duriusculum. Both are perennial, with similar branched skeletal hyphae, basidia, and spores, S. duriusculum differing in possessing gloeocystidia (Talbot, 1951, p. 51).

TYPE LOCALITY: Pennsylvania, U.S.A.