Flora of New Zealand Series

≡Graphis triticea Nyl., Annls Sci. nat. Bot. sér. 4, 19: 367 (1863).

=Fissurina consentanea Nyl., Lich. Nov. Zel.: 126 (1888).

≡Graphis consentanea (Nyl.) Müll.Arg., Bull. Herb. Boissier 2, App. 1: 81 (1894).

Fissurina consentanea. Lectotype: New Zealand. Sine loco [probably Wellington], Charles Knight H-NYL 7510 [fide Hayward (1977: 572)].

Description : Flora (1985: 176 – as Graphis triticea).

Chemistry : K+ yellow, C−, KC−, Pd+ orange; containing stictic acid.

N: Wellington (Charles Knight, H-NYL). Still very poorly known and collected in New Zealand. Known also from Dominica, Colombia, India, Australia (Wirth & Hale 1978; Awasthi 1991; McCarthy 2003c, 2006).

Pantropical

Illustrations : Hayward (1977: 572, fig. 6C; 575, fig. 8D – as Graphis triticea); Staiger (2002: 154, fig. 44).

Fissurina triticea is characterised by: the corticolous habit; a grey-white to dingy yellow, thick, warted often fissured thallus; pale immersed lirellae with a thick, thalline exciple almost closing over the hymenium; 4-locular ascospores with thick, halonate walls, 18–25 × 9–15 μm; and stictic acid.