Arthopyrenia minutella (C.Knight) Müll.Arg.
Verrucaria minutella Knight, Trans. Linn. Soc. Lond. 23: (1860).
Lectotype: New Zealand. Sine loco, (prob. Auckland) Charles Knight 179a, BM!
Thallus greyish, thin, 10-15 mm diam., in indeterminate patches or rarely delimited by a thin greyish line, smooth, effuse, scarcely developed, corticolous. Perithecia pin-prick like, very minute, scattered ± evenly over thallus, often crowded, black, shining, globose, entire, leaving a small black pit. Ascospores 1-septate, elongate-ellipsoid, 17 × 3 µm.
N: S: Throughout, coastal, on twigs of smooth-barked trees and shrubs especially of Weinmannia.
Endemic
