Cresponea plurilocularis
Common name
Golden boots lichen
Synonyms
Lecidea premnea var. plurilocularis Nyl.
Family
Opegraphaceae
Flora category
Lichen – Native
Endemic taxon
No
Endemic genus
No
Endemic family
No
Structural class
Lichens - Crustose
Current conservation status
2018 | Data Deficient | Qualifiers: SO
Brief description
Characterised by the corticolous habit; the whitish to greenish continuous to areolate thallus; scattered, sessile apothecia with a plane to subconvex, yellow-green to ochraceous disc, pruinose at first becoming epruinose at maturity; a colourless to pale-brown hypothecium; hamathecium of paraphysoids; and fusiform, 7–10(–11)-septate ascospores, 30–43(–45) × 6–8(–9) μm, cell walls ±thickened at septa, lumina roundish to sublentiform.
Distribution
North Island: Gisborne (Lake Waikaremoana). South Island: Southland (Pourakino Valley).
Known also in eastern Australia from Tasmania, New South Wales to Queensland, Lord Howe Island, New Caledonia, Borneo, Java, and Sumatra.
Habitat
On bark of beech trees in forest (Fuscospora fusca, Lophozonia menziesii), at bases of tree trunks, especially in dry overhangs where it occurs with Chrysothrix candelaris and species of Lecanactis and Caliciales.
Detailed description
Thallus whitish to greenish, continuous, cracked or rarely areolate, often delimited by a thin, dark-brown hypothalline line, up to 450 μm thick in section. Apothecia scattered, sessile, constricted at base, 0.2–1.8 mm diam., sometimes with a central column of sterile tissue, with a smooth to crenulate margin. Disc plane or subconvex, green-yellowish to ochraecous-yellowish, pruinose when young, epruinose at maturity. Hymenium 80–110 μm tall, I+ reddish. Hypothecium hyaline to pale-brown, 25–50 μm thick, I+ blue or reddish. Paraphysoids to 2 μm diam. in hymenium; apical cell thickened, to 4–5 μm, with a distinct, ±dark-brown cap. Asci 65–100 × 18–22 μm. Ascospores fusiform, 30–43(–45) × 6–8(–9) μm, 7–10(–11)-septate, cell walls ±thickened at septa, lumina roundish to sublentiform. Pycnidia immersed or subimmersed. Conidia 4–6 × 1–1.2 μm.
Substrate
Corticolous
Attribution
Fact sheet prepared by Marley Ford (4 August 2022). Brief description, Distribution, Habitat, and Features sections copied from Galloway (2007).
References and further reading
Galloway D.J. 2007: Flora of New Zealand: Lichens, including lichen-forming and lichenicolous fungi. 2nd edition. Lincoln, Manaaki Whenua Press. 2261 pp.