Parmotrema reparatum
Synonyms
Canomaculina reparata, Parmelia reparata
Family
Parmeliaceae
Flora category
Lichen – Native
Endemic taxon
No
Endemic genus
No
Endemic family
No
Structural class
Lichens - Foliose
Current conservation status
2018 | Data Deficient | Qualifiers: SO
Brief description
Characterised by the effigurate-maculate upper surface; dimorphic rhizines; and a chemistry of atranorin, salazinic and consalazinic acids.
Distribution
North Island: Wairarapa (Ford, per. coms 2022). South Island: Canterbury (Ashburton). Recently found on the Port Hills, Christchurch and throughout the Southland region (Hutchison 2019; Hutchison & Ford, pers. comm. 2022).
Known also from East Australia.
Habitat
On rocks and trees.
Detailed description
Thallus loosely adnate, mineral grey, coriaceous, 10–20 cm diam. Lobes irregularly divided, rounded at apices, broadly crenate and ciliate at margins, cilia abundant and dense, 1.5–2.5 mm long. Upper surface glossy, effigurate-maculate, ±cracked with age, without isidia or soredia. Lower surface black, except for a very narrow, brown-black apical zone, minutely wrinkled, short-rhizinate or papillate even near apices, short rhizines less than 0.1 mm long; long rhizines formed in groups, thick, to 1 mm long. Apothecia common, pedicellate, 10–20 mm diam., exciple rugose, effigurate-maculate; disc brown to dark-brown, perforate. Hymenium 75–85 μm tall. Asci 70 × 26 μm. Ascospores 15–18 × 6–8 μm.
Chemistry: Thallus K+ yellow; medulla K+ yellow→red, C−, KC+ red, Pd+ orange; containing atranorin, salazinic and consalazinic acids (Kurokawa 2001: 2).
Similar taxa
Parmotrema perlatum
Substrate
Corticolous, saxicolous
Attribution
Fact sheet prepared by Melissa Hutchison (5 July 2021). 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.
Hutchison M. 2019: iNaturalistNZ observation of Parmotrema reparatum. https://inaturalist.nz/observations/25365575