Buellia porulosa Müll.Arg.
Lectotype: New Zealand. Sine loco. W. Colenso, G 638/14!
Thallus ± obsolete, effuse whitish or pale greyish, lignicolous or corticolous. Apothecia scattered, discrete 0.1-0.3 mm diam., sessile, black, matt, epruinose, subconcave to plane, margin thin, black, persistent or occluded. Ascospores oval to fabiform, apices rounded, slightly constricted at septum, 12-15.3 × 5.1-8.3 µm, locules equal, rounded to angular.
N: Northland to Wellington. S: Nelson to Southland. Widespread on telegraph posts and decorticated wood (fenceposts, gates, etc.).
Endemic