Verrucaria striatula subsp. australis
Holotype: New Zealand. Auckland Is, Carnley Harbour, North Arm, 30.iii.1927, G.E. Du Rietz 2318 – S.
Description : Flora (1985: 608).
N: Wellington (Wellington Harbour). S: Otago (St Clair), Southland (Bluff). St: Traps Is [collected by Dr Andy Tulloch on 9.iii.1998 during a brief helicopter visit to the North Trap]. A: (Port Ross, Laurie Harbour, Carnley Harbour) C: B: [the only lichen known from this rarely visited island – collected by G. Einar Du Rietz on 5.iv.1927 (Santesson 1939: 30)]. On maritime rocks at high tide mark. Known also from southern Chile (Galloway & Quilhot 1999).
Austral
Verrucaria striatula ssp. australis is characterised by: the coastal rock habit; the brownish thallus with numerous, crowded, elongated and irregularly branching jugae (elevated ridges) that are acute at their apices, and the rather sparse development of perithecia; ascospores ellipsoidal, 9–12 × 4–6.5 μm (Santesson 1939: 29–30). Thallus margins are more effuse than in V. striuatula.