Degeliella P.M.
Type : Degeliella rosulata (P.M. Jørg. & D.J. Galloway) P.M. Jørg. [Degelia rosulata P.M. Jørg. & D.J.Galloway]
Description : Thallus small-squamulose, orbicular, developing on a thin prothallus. Photobiont cyanobacterial (Nostoc) or green algal or both together. Ascomata apothecia, to 2 mm diam., disc brownish with a pale, paraplectenchymatous proper exciple, surrounded by secondary thalline squamules. Hymenium I−. Hamathecium of conglutinate, simple paraphyses. Asci narrowly clavate, without any amyloid apical structures, 8-spored. Ascospores broadly ellipsoidal, thick-walled, often warted. Conidiomata not seen.
Key
Degeliella, recently segregated from Degelia (Jørgensen 2004a: 235), on the basis of a non-amyloid hymenium, and asci without an amyloid tholus, is a genus of two species included in the family Pannariaceae. It is a small, subantarctic genus, most closely related to Austrella (q.v.) (Jørgensen 2003c, 2004e). Taxa were formerly included in Degelia (Jørgensen & Galloway 1992b) and Psoromidium (Galloway 1983a; Galloway & James 1985). Both known species are recorded from New Zealand.
