Flora of New Zealand Series

R. gennarii Bagl., Comment. Soc. crittogam. Ital. 1: 17 (1861).

* Account prepared by Dr H. Mayrhofer (Graz).

Thallus thin, pale to dark grey or ochraceous, continuous or more usually rimose, without perceptible prothallus, saxicolous. Apothecia lecanorine, sessile, rarely subinnate, frequent and often contiguous, to 0.8 mm diam., disc dark brown, plane becoming excluded. Hymenium 60-90 µm tall. Epihymenium dark brown. Hypothecium colourless. Ascospores of Dirinaria -type, 11-17 × 6-9 µm. Chemistry: -.

S: Canterbury (Banks Peninsula, Timaru), Otago (Lee Stream, Sutton, Otago Peninsula, Taieri Beach, Nugget Point).

Cosmopolitan