Flora of New Zealand Series

≡Lichen tumidulus Sm., Trans. Linn. Soc. 1: 82 (1791).

Description : Flora (1985: 583).

N: Sine loco. William Colenso 29907 (BM). S: Southland (Clifden). On limestone rocks. Known also from Europe (Nimis 1993; Nimis & Martellos 2003).

Cosmopolitan

Illustrations : Wirth (1987: 469; 1995b: 917).

Toninia tumidula is characterised by: the saxicolous (basicolous) habit: the whitish to yellowish brown, white-pruinose, warty, areolate-squamulose thallus; the black, epruinose apothecia; the red-brown hypothecium; and oblong ascospores, 10–16 × 3–6 μm.