Cookeina Kuntze, Revisio generum plantarum 2: 375-1011. 1891.
Basionym: Cookeina Kuntze, Revisio generum plantarum 2: 849. 1891.
Type species: Cookeina tricholoma (Mont.) Kuntze, Revisio generum plantarum 2: 849. 1891.
Description: Cookeina is a genus of cup fungi in the family Sarcoscyphaceae, members can be found in tropical and subtropical regions of the world. Species in the Cookeina have a deep, cup-shaped to funnel-shaped fruiting bodies, or apothecia, may be found on fallen branches of angiosperms, trunks, and sometimes on fruits. Apothecia deeply cup-shaped, 4–16 mm diam. and up to 45 mm high, more or less long stalked, funnel-shaped. Hymenial surface smooth, pale yellow-orange or pale pink orange to orange-reddish. Outer surface covered with long, whitish or very faintly orange brown hairs (1–2 µm diam), obviously denser at the margin, grouped in bundles, concolorous to the hymenial surface, sometimes rough; margin smooth, whole, often introflexed. Stalk cylindrical, long, slightly expanded at the top, about 3 mm diam, smooth, white-cream. Flesh whitish or very pale whitish orange, waxy. Ascospores variable in size, fusiform, few irregularly citriform, occasionally with slightly mucronate extremities, Hairs up to 260 µm long, 40–50 µm large at the apex and 100–150 µm at the base, arising from the medullar excipulum, formed by more or less parallel fenced hyphae 10–15 µm wide, cylindrical or slightly enlarged in some points, with rounded, capitulate tip, irregularly thickened in some points, wall 2–4 µm thick, septate, yellow-brown, less dense near the top and more numerous and shorter near the base.