Caloplaca mooreae D.J.Galloway
C. L.B. Moorii Zahlbr., Denkschr. Akad. Wiss. Wien math.-naturwiss. Kl. 104: 367 (1941).
Lectotype: New Zealand. North Auckland, Mahurangi River on Avicennia resinifera. L.B. Moore ZA 62A, CHR 373803!
Thallus crustose, 0.1 mm thick, granular-furfuraceous to 4 cm diam., in a diffract-areolate crust, areolae to 1 mm diam., separated by deep cracks, or sometimes reduced to a few scattered granules or verrucae, greyish-yellow or yellowish-white, always with some distinct spotting of yellow or orange, K+ purple, corticolous. Apothecia scattered or crowded, sessile, rounded to irregular-contorted through mutual pressure, disc plane to subconvex to subglobose, 0.2-1.2 mm diam., orange, matt, epruinose, margins thick, entire to minutely crenulate, paler than disc, occluded with age. Ascospores biseriate, ellipsoid to oblong ellipsoid, apices slightly pointed, straight, 2-locular, (12-)15.3-18.7(-20) × (5-)7-8.3 µm, septum ¼ to ⅓ length of spore.
N: North Auckland to Wellington.
Endemic
C. mooreae is probably the most widespread corticolous species of Caloplaca in New Zealand although collections to date are few. It differs from C. inclinans in the yellowish tinge to the thallus, and the longer spores with ± pointed ends and thinner septum. Several collections of this species from Colenso (6315, 6317, 6318, 6451, 6258) and Knight are in BM.
