Buellia alutacea Zahlbr.
Lectotype: New Zealand. Northland, Hen I. on rock. L.B. Moore A85, CHR 374328!
Thallus effuse, of dispersed or ± adjacent verrucae or pustular-verruciform areolae, areolae convex to subglobose 0.3-0.7-(1.0) mm diam., rounded, smooth, matt, pale brown or yellowish-buff in places slightly white-pruinose, prothallus lacking, saxicolous. Apothecia moderately abundant, sessile, between or at margins of areolae, rounded 0.3-0.8 mm diam., constricted at base, disc convex, black, at first grey-pruinose, becoming glabrous, matt, margin thin, entire, black, prominent in young fruits, becoming occluded with age. Epithecium pale yellow-brown. Hymenium 75-90 µm tall, colourless. Hypothecium reddish or purplish-brown. Paraphyses discrete 1.5-2.0 µm thick, apices slightly swollen, to 3 µm. Ascospores irregularly biseriate or uniseriate, ellipsoid, apices rounded, septum to 2 µm thick, locules rounded, equal, 14-16 × 8-9 µm.
N: Northland - known only from the type collection.
Endemic
The species is described in detail in Lamb loc. cit., p. 79.
