Flora of New Zealand Series

C. sublitorale (Leight.) Grube & B.D. Ryan in Nash III et al. Lichen Flora of Greater Sonoran Desert Region: 163 (2002).

≡Verrucaria sublitoralis Leight., Lich. Fl. Gr. Brit.: 435 (1871).

≡Arthopyrenia sublitoralis (Leight.) Arnold, Ber. Bayer. Bot. Ges. 1: 121 (1885).

=Pharcidia balani (G.Winter) Bauch, Pub. Stn Zool. Napoli 15: 379 (1936).

≡Epicymatia balani G.Winter in P.A. Hariot, J. Bot., Paris 1: 233 (1887).

=Arthopyrenia balanophila Zahlbr., Denkschr. Akad. Wiss. Wien math.-naturwiss. Kl. 104: 253 (1941).

Arthopyrenia balanophila. Lectotype: New Zealand. Northland, Anawhata, between tide levels, on ? Mitella sp., H.H. Allan ZA456 – CHR 373597 [fide Galloway (1985a: 17)]. Published by Cranwell & Moore (1938: 385) as a nomen nudum, later described by Zahlbruckner (1941: 253).

Description : Flora (1985: 17 – as Arthopyrenia sublitoralis).

N: Northland (Karikari Peninsula, Matai Bay, Poor Knights Is., Russell, Anawhata), Wellington (Wellington Harbour). S: Otago (Port Chalmers), Southland (Bluff). A: (Enderby I.). Coastal, on shells of barnacles in intertidal zone and to high-water mark with species of Lichina and Verrucaria. Widespread in both hemispheres (see Santesson 1939: 44–64; Swinscow 1965: 57–61; Grube & Ryan 2002: 163–164; Santesson et al. 2004; Mohr et al. 2004). Recorded from North I. (without locality) as Pharcidia balani by Kohlmeyer & Kohlmeyer (1979: 358).

Cosmopolitan

Illustrations : Swinscow (1965: 58, fig. 1; 59, fig. 2 – as Arthopyrenia halodytes); Jahns (1980: 253, fig. 651 – as Arthopyrenia halodytes); Moberg & Holmåsen (1982: 219 – as Arthopyrenia sublitoralis); Dobson (1992: 288; 2000: 331 – as Pyrenocollema halodytes); Hansen (1995: 111 – as Pyrenocollema halodytes); Gilbert (2000: pl. 15D – as Pyrenocollema halodytes); Purvis (2000: 65 – as Pyrenocollema halodytes); Mohr et al. (2004: 528, fig. 5B–D).

Collemopsidium sublitorale is characterised by: the basicolous (marine shells of living barnacles on littoral rocks) habit; the green-brown to brown-black, filmy thallus (often lacking) with a cyanobacterial photobiont; minute, scattered, immersed perithecia, 0.15–0.25 mm diam.; and biseriate, oval-ellipsoidal, 1-septate (one cell larger) ascospores, 12–25 × 5–9 μm.