COMPOSITAE. Brachyglottis repanda: Auckland, Taneatua Reserve, 20 m. MYRTACEAE. Leptospermum scoparium: Auckland, Mt. Te Aroha, 300 m. Metrosideros robusta: Auckland, Waipoua Kauri Forest, 200 m.

Hymenophore annual, membranous, adherent, effused forming linear areas to 24.x 2 cm, with numerous outlying islands; hymenial surface white, becoming cream, somewhat prumose, even, at length scantily creviced ; margin thinning out, white, arachnoid, adherent. Context white, 10-30 µm thick, basal layer of a few repent hyphae, intermediate layer of scanty erect hyphae embedding masses of crystals; generative hyphae 2.5-3 µm diameter, walls 0.25 µm thick, encrusted with coarse crystals, with clamp connections. Hymenial layer to 30 µm deep, a close palisade of basidia, paraphyses, and paraphysate hyphae. Basidia subclavate or subcylindrical, 12-24 x 4-6 µm, bearing 2-4 spores; sterigmata slender, erect, to 4 µm long. Paraphyses scanty, subclavate, 10-18 x 4-5 µm. Paraphysate hyphae with long acuminate apices, projecting to 15 µm, some bearing scattered crystals. Spores ellipticoblong, 5-7 x 3-4 µm, walls smooth, hyaline, 0.2 µm thick.

DISTRIBUTION: Europe, North America, New Zealand.

HABITAT: Effused on bark of dead branches.

Collections listed agree with European specimens examined in Kew herbarium, labelled C. crustaceum, save that paraphysate hyphae are more freely developed. Rogers & Jackson (1943, p. 289) have shown that C. crustaceum is a synonym of C. contiguum. Crystals are produced in such quantities as to obscure the tissues, basidia, paraphyses, and paraphysate hyphae sometimes being encrusted with them.

TYPE LOCALITY: Mustiala, Finland.