Cladonia cervicornis (Ach.) Flot.
Lichen cervicornis Ach., Lich. suec. Prod.: 184 (1798).
Primary squamules medium to large, thick, often tough, recurved at apices when dry, upper surface green-grey or brown-grey, lower surface whitish-grey tinged mauve. Podetia short 5-15 mm tall, with broad, shallow, imperforate cups, margins regular, not proliferating. Cortex ± continuous, ± areolate, grey-green, brown-grey or brown. Apothecia terminal on margins of cups, sessile, minute, brown. Chemistry: Cortex K+ yellow, KC-, Pd+ red. Fumarprotocetraric acid, ± atranorin.
S: Nelson, east and west of Main Divide to Fiordland and eastern coastal districts of Otago and Southland. Fellfield or on peat soils, s.l. to 2000 m.
Cosmopolitan
Chemical, morphological and nomenclatural notes on this species are given in Ahti [ Lichenologist 12: 125-126 (1980)].
