Flora of New Zealand Series

=Bacidia albozonata Zahlbr., Denkschr. Akad. Wiss. Wien math.-naturwiss Kl. 104: 317 (1941).

=Bacidia thalassina Zahlbr., Denkschr. Akad. Wiss. Wien math.-naturwiss Kl. 104: 319 (1941).

Lectotype: New Zealand. Otago, Trotter's Gorge, on rock, J.S. Thomson T 1414 [ZA 3670] – CHR 373613 [fide Galloway (1985a: 34)].

Bacidia albozonata. Lectotype: New Zealand. Otago, Port Chalmers, on coastal rock, J.S. Thomson T 1263 [ZA 3790] – CHR 373609 [fide Galloway (1985a: 34)].

Bacidia thalassina. Lectotype: New Zealand. Otago, Port Chalmers, on rock, J.S. Thomson T 713 [W 34] – CHR 373614 [fide Galloway (1985a: 34)]. Isolectotype – OTA 042520.

Description : Flora (1985: 33–34).

S: Otago (Manuka Gorge, Trotter's Gorge, Port Chalmers, Bullock Track Dunedin). Lowland, inland and coastal, on rocks.

Endemic

Bacidia subcerina is characterised by: the saxicolous habit; the olivaceous, minutely verrucose-papillate, areolate thallus, delimited by a whitish prothallus; pale orange-brown to red-brown, glossy apothecia (pale mushroom-pink and slightly translucent when moist); a pale yellowish hypothecium; and fusiform, 3–5-septate ascospores (contents oily), 17–25.5(–30) × 3.5–5 μm.