Coccotrema porinopsis
≡Verrucaria porinopsis Nyl., Bot. J. Linn. Soc. 20: 68 (1884).
Description : Flora (1985: 130).
Chemistry : Cortex K+ yellow→red, C−, KC+ red, Pd+ orange; containing stictic, norstictic and salazinic acids and an unidentified compound.
N: Northland (Three Kings Is, Radar Bush, Herekino Forest, Kawakawa) to Auckland, South Auckland (Te Aroha). S: Marlborough (Mt Stokes), Southland (Wilmot Pass). St: (Magog, Hielanman, Fraser Peaks, Anchorage I., Islet Cove Port Pegasus). In coastal forest as an epiphyte of Metrosideros excelsa and Weinmannia racemosa, rarely on maritime rocks. Still very poorly collected in New Zealand. Known also from Japan, China, Ceylon, Malaysia, Papua New Guinea, New Caledonia, New South Wales and Tasmania in Australia, and in southern Chile (Hue 1914a: 338–340; Oshio 1968; Yoshimura 1974; Kantvilas 1990c; Filson 1996; Messuti 1996; McCarthy 2003c, 2006; Messuti & Vobis 2003).
Western Pacific
Illustrations : Oshio (1968: 87, fig. 2A–E; pl. 1, fig. 1); Yoshimura (1974: pl. 22, fig. 187); Messuti (1996: 60, fig. 2C–D).
Coccotrema porinopsis is distinguished from C. cucurbitula by simple or branched, ±terete isidia both on the thalline margin of the apothecia and also scattered on the upper surface of the thallus.
