Flora of New Zealand Series

≡Platygrapha longifera Nyl., Bot. J. Linn. Soc. 9: 258 (1866).

≡Phlyctella longifera (Nyl.) D.J. Galloway, N.Z.J. Bot. 21: 195 (1983).

=Phlyctella atropa Nyl., Lich. Nov. Zel.: 74 (1888).

Lectotype: New Zealand. Otago, on top of Saddlehill near Dunedin, on bark of dead trees, x.1861, W.L. Lindsay – H-NYL 22326 [fide Galloway (1985a: 387)].

Phlyctella atropa. Lectotype: New Zealand. Otago, on top of Saddlehill near Dunedin, on bark of dead trees, x.1861, W.L. Lindsay – H-NYL 22326 [fide Galloway (1985a: 387)].

Description : Flora (1985: 386 – as Phlyctella longifera).

Chemistry : Thallus K+ yellow; containing stictic and hypostictic acids and an unidentified compound.

N: Wellington (Herb. Knight). S: Otago (Saddle Hill). Known from coastal collections on bark of broadleaf (Griselinia littoralis).

Endemic

Phlyctis longifera is characterised by: the corticolous habit: the chalky-white roughened, minutely granular-leprose or furfuraceous thallus; the innate, small (0.1–0.3 mm diam.) apothecia with white-pruinose discs; fusiform, 7–11-septate ascospores, 55–80(–86) × 5–7 μm; and stictic acid in the medulla.