Flora of New Zealand Series

≡Graphis subvelata Stirt., Qd agric. J. 5: 488 (1899).

≡Graphina subvelata (Stirt.) Zahlbr., Cat. lich. univ. 2 (3): 428 (1923).

Description : Flora (1985: 173 – as Graphina subvelata).

Chemistry : TLC−, all reactions negative.

N: Poor Knights Is to Wellington. S: Nelson to Southland. Widely distributed on bark on both native and introduced trees and shrubs, coastal and lowland. Known also from Australia (Archer 1999b: 293).

Australasian

Illustrations : Hayward (1977: 568, fig. 3C; 570, fig. 5C); Johnson & Galloway (1999: 14); Malcolm & Malcolm (2000: 78) – all as Graphina subvelata.

Thalloloma subvelata is characterised by: the continuous, smooth whitish or greenish white thallus; prominent, flexuous (non-fissurine) lirellae, 0.5–3 × 0.3 mm, with a raised thalline margin and open, black exciple; I+ violet-blue ascospores, 6–12 × 3–5-locular, 30–45 × 12–18 μm, 8 per ascus; and no demonstrable chemistry. Hayward (1977: 569) notes that Auckland material listed as Graphina platycarpa (Eschw.) Zahlbr. (Zahlbruckner 1941: 261) is similar to the type of G. subvelata, which is a later name, and that Graphina sophistica (Nyl.) Müll.Arg. (Müller Argoviensis 1894: 81), based on Graphis sophistica Nyl. (Nylander 1888: 125), a species described from Colombia (Nylander 1863), is also possibly an earlier name for T. subvelata. However, the requisite typifications of these earlier taxa have not been made, and for the moment the name T. subvelata is retained.