Bacidia macrospora
Synonyms
Bacidia interponens, Lecidea interponens, Lecidea interposita, Patellaria interponens, Platygrapha macrospora
Family
Ramalinaceae
Flora category
Lichen – Native
Endemic taxon
Yes
Endemic genus
No
Endemic family
No
Structural class
Lichens - Crustose
Current conservation status
2018 | Data Deficient
Brief description
Characterised by the corticolous habit; dirty yellowish to pale-olive, verrucose-uneven, glebose thallus, delimited by a thin, irregular, black prothallus; dark red-brown to blackened apothecia, surrounded by a pseudo-thalline margin of flattened or raised thalline granules; a thick, opaque, brown-black hypothecium; and acicular, 7–18-septate ascospores, 50–70(–90) × 3– 3.5 μm.
Distribution
North Island: Northland (Te Paki), Wellington. Still poorly collected and understood.
Habitat
On bark of trees (Knightia excelsa) and shrubs.
Detailed description
Thallus sordid yellow or pale olive, verrucose, ± glebose, uneven, ± continuous or areolate, delimited by a thin, black, irregular prothallus, in patches 2-3(-5) cm diam. Apothecia dark red-brown to blackish, ± innate or flattened, 0.4-1.1 mm diam., to very shallowly convex, round to irregular-deformed, matt, immarginate, rarely with a thin, pale brown margin, surrounded by a pseudo-thalline margin of flattened or raised thalline granules. Epithecium fuscous-brown, colour in swollen apices of paraphyses. Hymenium 90 µm tall. Hypothecium opaque, thick, brown-black. Ascospores acicular, 7-18-septate, (50-)70-87 × 3.2-3.5 µm.
Substrate
Corticolous
Attribution
Fact sheet prepared by Marley Ford (13 December 2021). Brief description, Distribution, Habitat, and Features sections copied from Galloway (1985) & Galloway (2007).
References and further reading
Galloway D.J. 1985: Flora of New Zealand: Lichens. Wellington: PD Hasselberg, Government Printer. 662 pp.
Galloway D.J. 2007: Flora of New Zealand: Lichens, including lichen-forming and lichenicolous fungi. 2nd edition. Lincoln, Manaaki Whenua Press. 2261 pp.