Flora of New Zealand Series

Holotype: New Zealand: South I., Canterbury, Craigieburn Forest Park, track from Information Centre to Lyndon Saddle, 1000–1100 m, on bark of Nothofagus solandri var. cliffortioides, ix.1981, P.W. James – BM. Isotype – CHR.

Description : Flora (1985: 278–279).

Chemistry : Medulla K+ yellow-orange, C−, KC+ orange, Pd+ orange; containing atranorin, stictic, constictic, norstictic (tr.) and echinocarpic acids, accessory compounds, and four or more orange-yellow pigments.

N: Wellington (Tararua Ra.). S: E of Main Divide in Canterbury, Otago, also in Fiordland (Dusky Sound). A: On trees and shrubs in forest, s.l. to 1000 m. Known also from Victoria and Tasmania where it is rare (James & Galloway 1992: 226; McCarthy 2003c, 2006; Kantvilas & Louwhoff 2004). Records from Argentinian Patagonia (Bernasconi et al. 2002) are incorrect, and refer to M. chrysogaster Bjerke & Elvebakk erke 2005: 443).

Australasian

Illustrations : James & Galloway (1992: 227, fig. 84A).

Menegazzia caliginosa is the sorediate counterpart of M. foraminulosa. It is distinguished from other sorediate species in the genus by the pigmented upper side of the internal cavity, the presence of echinocarpic acid, the faint white maculae of the lobe ends, and when fertile, by the 8-spored asci.