Caloplacae buelliae similis, sed excipulo proprio pallido, ascosporis minoribus et hospitis (Megalaria) differt.
Typus: Falkland Islands, West Falkland, West Point Island, steep slope and cliffs facing the Woolly Gut, UTM 21F TD 4403-4404 [51°355667°S, 60°670333°W], Hebe-shrub, 22 January 1968, H. A. Imshaug (40896 p.p.) & R. C. Harris (MSC-0108536—holotypus).
Description
Thallus inapparent.
Apothecia up to 0.4 mm diam., without algae in margin; disc rust red-orange-red, margin paler, orange to pale orange. Hymenium 65–75 mm high, uncoloured, not inspersed with oil droplets, paraphyses end cell enlarged to 3 mm diam; epipsamma medium coarse. Ascospores 8 per ascus, 12–16 × 5–7 mm, septum 3–4 mm broad.
Chemistry. Anthraquinones. Specimen too small for TLC.
Distribution and ecology. Known only from the type locality from Hebe-scrub on West Point Island, West Falkland. Lichenicolous on Megalaria grossa.