Collema glaucophthalmum
Description : Flora (1985: 137–138).
N: Taranaki (Mt Taranaki). S: Southland (Milford Sound). In dense shade of Nothofagus forest, rather rarely collected, on trunks and twigs, s.l. to 700 m. Known also from Australia (McCarthy 2003c, 2006).
Pantropical
Illustrations : Degelius (1974: 166, fig. 49); Grgurinovic (1992: 219, fig. 71); Kantvilas & Jarman (1999: 58).
Collema glaucophthalmum is characterised by: the corticolous habit; a medium to large (to 6 cm diam.) thallus, with membranous, fenestrate, pustulate to ridged lobes, without isidia; numerous to crowded, sessile apothecia with a red disc, covered with grey-blue or white pruina; and fusiform to acicular or subbacillar, straight or curved, 5–9(–11)-septate ascospores, with end cells usually thinner and extended, rarely constricted at septa, (20–)40–60(–95) × (3–)4–6.5 μm.
