Flora of New Zealand Series

≡Myriangium inconspicuum C.Bab. in J.D. Hooker, Fl. Nov. Zel. 2: 310 (1855).

Lectotype: New Zealand. Sine loco, on dead Phormium tenax, W. Colenso – BM [fide Galloway (1985a: 11)].

Description : Flora (1985: 11).

N: Known only from the type collection.

Endemic

Illustration : Babington (1855: pl. CXXVIII, fig. B – as Myriangium conspicuum); Knight (1883: pl. XXXV, fig. 5)

Arthonia conspicua is characterised by: the corticolous habit; pale greenish grey or whitish, blotchy, indeterminate thallus; scattered, irregularly rounded, dark red-brown to black apothecia, 0.2–1 mm diam.; 6-spored asci; and ovoid, 1-septate ascospores, 29–33 × 12–15 μm.