Hypocreopsis rhododendri  

Anamorph: not known.
Teleomorph: stromata 25-80 (-200) mm diam. and 4-5 mm thick, irregularly radially ridged with branched finger-like projections ca 5 mm wide to the periphery, orange-brown, tan or reddish brown, the outer parts often less strongly pigmented, initially smooth but becoming rugose in the central part, sometimes completely encircling the supporting tree stem. Ascomata perithecia, immersed in stromatic tissue with the ostioles visible as brown dots over almost the entire stroma surface, ± globose, the neck papillate and hardly extending beyond the surface. Interascal tissue absent at least at maturity, though probably with apical paraphyses. Asci cylindrical, thin-walled, not fissitunicate, with a minute apical ring that does not blue in iodine, 8-spored. Ascospores arranged uniseriately, 12-17 x 12-13.5 µm, rather variable in form but mostly ± globose to broadly cylindric-ellipsoidal, the ends usually rounded to ± truncate, very thick-walled, usually with a median septum, hyaline, conspicuously warted when mature, without a gelatinous sheath or appendages, frequently aggregated into cylindrical clusters or short chains when ejected.