Notoparmelia erumpens
Synonyms
P. tenuirima f. corallina Müll. Arg., Parmelia erumpens Kurok
Family
Parmeliaceae
Flora category
Lichen – Native
Endemic taxon
No
Endemic genus
No
Endemic family
No
Structural class
Lichens - Foliose
Current conservation status
2018 | Not Threatened | Qualifiers: SO
Brief description
Characterised by the deeply reticulately fissured cortex and abundant, coarse, isidioid soredia.
Distribution
North Island: Northland to Wellington. South Island: Marlborough, Westland, Canterbury (Hooker Valley, Nina Valley). Auckland Islands.
Known also from Lord Howe Island, and E and S Australia, and from South Africa, India, Malaysia, Indonesia, Taiwan and Japan.
Habitat
A mainly saxicolous coastal species in northern New Zealand; corticolous in inland North Island and South Island localities.
Detailed description
Thallus orbicular to spreading, loosely attached, to 20 cm diam., saxicolous or corticolous. Lobes rounded (5-10 mm wide), subimbricate, margins entire, black, shining. Upper surface smooth, pale grey, whitish ashy-grey or greenish-grey with a pale bluish tinge, pseudocyphellae prominent in a white reticulum, becoming deeply cracked centrally, distinctly white-maculate near lobe apices or often white-pruinose at margins, isidiate-sorediate. Isidia laminal, rarely at margins, scattered, corralloid-pustular, clustered and deformed, developing from cortex near margins of cracks or pseudocyphellae, with age becoming coarse granular-sorediate, central parts often forming a dense, coralloid, isidiate-sorediate mat. Lower surface black, shining, with a dark brown, naked marginal zone often present, rhizinate centrally. Rhizines black, simple or branched. Apothecia occasional, sessile to subpedicellate, to 15 mm diam., disc red-brown to dark brown, matt, plane or concave, margins entire at first, becoming fissured with age, sinuous or crenate, often inflexed and obscuring disc, becoming isidiate-sorediate, thalline exciple strongly maculate-cracked, pseudocyphellate. Ascospores ellipsoid, 9.5-12 × 6.5-8 µm.
Chemistry: Cortex K+ yellow; medulla K+ yellow→dark red, C−, Pd + red-orange; containing atranorin, chloroatranorin, salazinic acid (major), consalazinic acid (minor), lobaric acid (minor) and ±protocetraric acid (trace).
Similar taxa
Separated from other members of the genus by the pustulate soredia that are mostly laminal and the deeply fissured cortex.
Substrate
Corticolous, saxicolous
Attribution
Fact sheet prepared by Marley Ford (1 February 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.