Flora of New Zealand Series

≡Phlyctella oleosa (Stirt.) Müll.Arg., Bull. Herb. Boissier2, App.1: 55 (1894).

=Phlyctis stromatophora C.Knight, Trans. N. Z. Inst. 15: 349 (1883).

=Phlyctis cyrtospora C.Knight, Trans. N. Z. Inst. 15: 350 (1883).

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

Lectotype: New Zealand. Near Wellington, J. Buchanan 151 – GLAM [fide Galloway (1985a: 388)]. Isolectotype – WELT.

Phlyctis stromatophora. Holotype: New Zealand. Sine loco [probably Wellington], Charles Knight – WELT. Isotype – BM.

Phlyctis cyrtospora. Lectotype: New Zealand. Sine loco [probably Wellington], Charles Knight – WELT Herb. Knight Vol. 34A, p. 6 – based on part of Stirton's type of Phlyctis oleosa [fide Galloway (1985a: 388)].

Phlyctis antaxia. Lectotype: New Zealand. Sine loco [probably Wellington], 1867, Charles Knight 96 – H-NYL 22372 [fide Galloway (1985a: 388)].

Description : Flora (1985: 387 – as Phlyctella oleosa).

Chemistry : Thallus K+yellow→red; containing norstictic and connorstictic (±) acids.

N: Northland to Wellington. Still very much undercollected. On smooth bark in moist, humid habitats.

Endemic

Illustrations : Knight (1883: pl. XXVI, fig. 16 – as Phlyctis stromatophora; pl. XXXVII, fig. 17 – as Phlyctis cyrtospora); Nylander (1888: tab.1, fig. 12 – as Phlyctis antaxia).

Phlyctis oleosa is characterised by: the corticolous habit; the smooth, glossy, waxy, areolate, white, creamish or pinkish fawn thallus; semi-immersed, pseudostromatose apothecia, 1–3 mm diam., the disc densely white-pruinose; cylindrical to oblong-ellipsoidal, 7-septate ascospores, (45–)55–80(–85) μm; and norstictic (K+yellow→red) and connorstictic acids in the medulla.