Verrucaria mucosa Wahlenb.
Thallus green-brown to greenish-black, gelatinous, smooth or with a few cracks, rather thicker than V. maura, sometimes developing a white prothallus which may be ± conspicuous at margins, in patches, saxicolous, Perithecia immersed, more in evidence when dry. Ascospores ellipsoid 9-13 × 4-6 µm.
S: Southland (Bluff). A: C: On coastal rocks below high water mark.
Cosmopolitan
