Bilimbia lobulata
≡Lecidea lobulata Sommerf., Phys.-oecon. Beskr. Saltd.: 54 (1826).
≡Myxobilimbia lobulata (Sommerf.) Hafellner in J. Hafellner & R. Türk, Stapfia 76: 154 (2001).
Description : Thallus granular to minutely squamulose to 2 cm diam. Squamules contiguous or overlapping, 0.5–3 mm diam., greyish. Apothecia sessile, rounded or occasionally sublobulate 0.3–1 mm diam., discrete to aggregated, brown-black to black, matt, epruinose. Proper exciple excluded, thin, red-brown to purple, merging with purplish hypothecium. Epithecium pale greenish grey. Hymenium colourless to pale red-brown or purplish, 70–90 μm tall. Paraphyses simple or occasionally branched, apices to 2.5 μm diam., submoniliform. Ascospores (1–)2–3-septate, ellipsoidal-fusiform to clavate, colourless to very pale brown, 12–30(–34) × 3–6 μm, with a finely warted perispore.
S: Southland (Lake Wapiti, Fiordland). On mosses and soil, often on calcareous substrata. See also Timdal (1991: 126). Known also from Great Britain (Purvis et al. 1992), Europe (Wirth 1987, 1995a, 1995b; Nimis 1993; Sérusiaux et al. 1999; Scholz 2000), Svalbard (Elvebakk & Hertel 1997), Scandinavia (Fries 1874; Nimis 1993; Santesson 1993; Nimis & Martellos 2003; Santesson et al. 2004); North America, Australia, South Orkney Is (Signy I.), Charcot I., Antarctica and Antarctic Peninsula (Convey et al. 2000; Øvstedal & Lewis Smith 2001: 253; McCarthy 2003c, 2006; Kantvilas et al. 2005).
Bipolar
Illustrations : Hafellner (1989a: 59, fig. 1E – as Mycobilimbia lobulata); Foucard (1990: pl. 326 – as Tonina lobulata); Øvstedal & Lewis Smith (2001: pl. 53 – as Mycobilimbia lobulata); Kantvilas et al. (2005: 265, fig. 3C).
Bilimbia lobulata is characterised by: the basicolous, terricolous habit; the pale greyish warted-granular to minutely squamulose thallus; dispersed to aggregated brown-black to black, immarginate, lecideine apothecia; and colourless to very pale brown, ellipsoid-fusiform, 1–3-septate ascospores, 12–30(–34) × 3–6 μm, with a finely warted perispore.
