Aspicilia subsorediza (Lynge) R.Sant.
Lecidea subsorediza Lynge in Dahl et al., Skr. Svalbard Ishavet 70: 22 (1937).
Thallus crustose, uniform, limited by a thin black prothallus or not, in small patches 1-3 cm diam., saxicolous. Upper surface grey-white, pruinose, areolate-cracked, areolae 0.2-0.4 mm diam., sorediate centrally, soredia rounded 0.15-0.18 mm diam., granular-crateriform, concolorous with thallus, often densely covering thallus. Apothecia not seen. Chemistry: K+ red.
S: Canterbury (Mt Cook, summit rocks). Alpine, one of the lichens recorded from the highest altitude in New Zealand.
Bipolar
Identified from New Zealand by Prof. R. Santesson (Stockholm). It occurs with A. alpina and with yellow-green species of Rhizocarpon and is probably more widely distributed in the high alps of New Zealand.
