Flora of New Zealand Series

Syntypes: New Zealand. Sine loco [probably Wellington], 1873, Charles Knight s.n. – M

Description : Thallus dull yellowish white, thin, areolate, surface smooth and dull; soredia and isidia absent; corticolous. Apothecia verruciform, inconspicuous, scattered, rarely confluent, 0.7–1.0 mm diam., ostioles conspicuous, black, 1 per verruca. Ascospores 8 per ascus, irregularly uniseriate, ellipsoidal, 70–100 × 25–40 μm.

Chemistry : TLC−, all reactions negative (Archer 1995: 12).

N: Wellington. Known only from the type locality.

Endemic

Pertusaria micropora is characterised by: the corticolous habit; the yellowish white, rimose thallus; verruciform apothecia with black ostioles, 1 per verruca; 8-spored asci; uniseriate ellipsoidal ascospores; and no chemistry.