On dead bark and wood of (1) Chamaecyparis lawsoniana, Auckland, Mt Roskill, Jul 1964, R.F.R. McN., 24464; (2) Cupressus macrocarpa. Nelson, Karamea, Jan 1964, R.F.R. McN., 24459; (3) Metrosideros excelsa, Auckland, Manukau Heads, May 1965, J. M. Dingley, 24569; (4) Pinus radiata, Rotoehu State Forest, May 1964, R.F.R. McN., 24463; (5) Salix sp., Karamea, Jan 1964, R.F.R. McN., 24462; (6) unknown host, Waitakere Ranges, Kauri Knoll Track, May 1965, R.F.R. McN., 24514.

Fructifications firm-gelatinous, determinate, originating as pustules, becoming smooth or convoluted, coalescing to form irregular areas to 10 cm in longest dimension, sordid hyaline, dingy white or pallid ochraceous when fresh, drying to an ochraceous brown, irregular film; margins abrupt. In section 3-12 mm thick, consisting of ascending layer and hymenium, basal layer present or absent. Basal layer when present composed of compact, interwoven, distinct, hyaline hyphae lying parallel with substratum. Ascending layer composed of loosely interwoven, distinct, hyaline hyphae, 1.5-4.5µm diam., clamp connections present. Hymenium composed of dikaryophyses, gloeocystidia and basidia; dikaryophyses simple or irregularly branched apically, 1-3 µm diam., not or rarely arising from fertile hyphae; gloeocystidia clavate, subclavate or subfusiform, occasionally irregular, arising below probasidia, at first hyaline, contents becoming golden to brownish yellow, granular, 35-85 x 6-9-(13) µm, probasidia stalked, racket-shaped, with basal clamp connections, formed in groups on fertile hyphae, 18-31-(37) x 8-13 µm, becoming 2-celled by longitudinal or oblique septa or longitudinally cruciate-septate; sterigmata cylindrical, to 45  x4.5 µm. Basidiospores short-cylindrical to broadly elliptical, often slightly curved, hyaline, apiculate, 9.3-13-(15.4) x 5-8.7 µm. Germination by repetition, or by germ tubes.

Angiosperm and gymnosperm bark and wood.

Olive, Bull. Torrey hot. Club 81: 330, f. 13-22. 337, f. 52A. 1954. (As Exidia cystidiata); Wells, Lloydia 20: 60. f. 10a-e. 1957.

Ductifera sucina is characterised by firm-gelatinous fructifications, stalked basidia and conspicuous golden to brownish yellow gloeocystidia.
Olive (1958, p. 94) indicated that he did not consider the presence or absence of gloeocystidia of generic significance and retained D. sucina and related species in Exidia.

Blumenau, Brazil.