Flora of New Zealand Series

P. oleosa (Stirton) Müll. Arg., Bull. Herb. Boissier 2, App. 1: 55 (1894).

Phlyctis oleosa Stirton, Trans. Linn. Soc. Lond. Bot. 14: 464 (1875).

P. stromatophora Knight, T.N.Z.I. 15: 349 (1883).

P. cyrtospora Knight, T.N.Z.I. 15: 350 (1883).

Phlyctella autaxia Nyl., Lich. N.Z.: 74 (1888).

Lectotype: New Zealand. Near Wellington. J. Buchanan 151, GLAM!

Phlyctis stromatophora. Isotype: New Zealand. Sine loco (prob. Wellington). Charles Knight, BM!

Phlyctis cyrtospora. Lectotype: New Zealand. Sine loco (prob. Wellington). Charles Knight, WELT, Herb. Knight, Vol. 34A, p. 6! (Based on part of Stirton's type of P. oleosa).

P. autaxia. Lectotype: New Zealand. Sine loco (prob. Wellington). Charles Knight, 96, 1867, H-NYL 22372!

Thallus orbicular to spreading, in patches, 5-10(-15) cm diam. Upper surface smooth or minutely warted or wrinkled, waxy, shining, corticate, ± coriaceous, continuous to markedly areolate-cracked, areolae concave, 0.5-1.5 diam., angular, margins slightly raised, white or dingy cream to whitish-fawn or pale pinkish. Apothecia sparse to frequent, clustered, rarely solitary, semi-immersed in pseudostromata, 1-3 mm diam., rounded to irregular-deformed, disc plane, pale brownish to reddish, densely white-pruinose, rarely blackened and epruinose, margins raised, inflexed, entire to irregularly dentate or crenate, thick, concolorous with thallus or eroded and then red-brown, translucent. Ascospores cylindrical or oblong-ellipsoid, 7-septate, (55-)60-78(-74) × 13-16(-18) µm. Chemistry: Cortex K+ yellow → red. Norstictic, ± connorstictic acids.

N: North Auckland to Wellington. Still very much undercollected.

Endemic