Datroniella tropica

A species of Datroniella

The fruit body of D. tropica is effused-reflexed, meaning it is like a crust fungus with the margins extended and bent backwards to form rudimentary caps. These caps project up to 2 cm (0.8 in), and are 2 cm (0.8 in) wide and 2.5 mm (0.10 in) thick at their base. The smooth cap surface is yellowish brown to reddish brown. The pore surface, initially white to cream, becomes brown when bruised and grey when dried. The small round pores number about 5–7 per millimetre. Datroniella tropica has a dimitic hyphal system, containing both generative and skeletal hyphae. Its smooth, thin-walled spores measure 8–9.8 by 2.5–3.5 μm, and usually contain up to three oil droplets. Datroniella subtropica is similar in appearance, but has smaller spores that are 6.8–8 by 2–2.7 μm.