Stroma pulvinate, slightly convoluted, rarely orbicular, 5-6 x 2.5-5 mm., 0.5-1 mm. thick, scattered or gregarious, cream or buff suffused brown, punctate with translucent, sunken ostioles, margins incurved, sometimes thickened but free, undulate, stroma centrally attached, pseudoparenchymatous, cells up to 10 µ diameter, outer tissue compacted, hyaline, thin walled collapsed in dried specimens. Perithecia globose, 0.15-0.2 mm. in diameter arranged in superficial zone of stroma, ostiole 70-80 µ, not papillate, perithecial wall 15-20 µ thick, distinct and lightly pigmented yellow. Asci cylindrical, 70-95 x 4-6 µ with 12-16 unicellular part-spores; pseudoparaphyses absent. Spores globose or cuboid, 3-4 µ diam. or oval then 5-7 x 3-4 µ, echinulate, hyaline.

Distribution: New Zealand.

Habitat: On bark of dead branches.

Stroma pulvinatum, leviter convouum. 5-6 mm. diam., 1-5 mm. crassum, cremeum bubalinum, brunneo-suffusum, ostiolis submersis translucentibus punctatum, ad medium substratum affixum, pseudoparenchymatum, marginibus incurvatis plerumque densatis liberis. Perithecia globosa 150-200 µ diam., in regione superficiali stromatis immersa, ostiolo 70-80 µ longo, non papillato. Asci cylindrici 70-100 x 4-6 µ, 12-16 sporis divisis, pseudoparaphysibas absentibus. Sporae divisae globosae vel cuboides, 3-4 µ, vel ovatae 5-7 x 3-4 µ, echinulatae, hyalinae.

The sunken translucent ostioles serve to separate the species from H. hunua, H. coprosma and H. pulvinata. The stroma is neither pulvinate nor prosenchymatous and margins are thickened but free.

Suttonia salicina Hook.f. Auckland. Coromandel Peninsula, Colville, January 1947, J.M.D. (type collection).