Pannaria euphylla
Synonyms
Psoroma euphyllum
Family
Pannariaceae
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 cetrarioid growth habit on twigs, with spreading lobes not closely appressed to substratum; and pannarin as major secondary compound. It has a green alga as major photobiont.
Distribution
North Island: South Auckland (King Country). South Island: Nelson (Lake Rotoiti), Westland (Taramakau River, Kelly Ra.). Stewart Island.
Known also from Australia.
Habitat
A twig species from humid habitats in moderate shade, common as an epiphyte of Coprosma, Cyathodes, Pseudowintera and Fuscospora.
Detailed description
Thallus foliose-lobate, margins free and subascendent, 2-5 cm diam., without a prothallus. Lobes 2-3 mm wide, concave, margins crisp, ascending, entire, thickened, minutely notched or incised, or sometimes small-lobulate. Upper surface minutely granular appearing matt, smooth or slightly undulate, occasionally with short, white, or grey entangled silky tomentum, bright lettuce- green when wet, pale glaucous-green when dry. Cephalodia on upper and lower surfaces and on rhizines, 0.5-2.0 mm diam., pale grey-blue or brownish, simple, globose to convolute-placodioid, cerebriform, smooth, matt, sometimes wrinkled-plicate. Lower surface white, naked or with a short white pubescence, or with ± dense white to greyish, simple to squarrose rhizines. Apothecia to 2 mm diam., laminal and marginal, pedicellate, round, margin concolorous with thallus, thin, crenulate, disc plane or subconcave, pale orange-brown to red- brown, often white-pruinose, smooth, continuous, not etched, gyrose or fissured or with thalline lobules, thalline exciple smooth, tomentose at base. Ascospores 16-18 × 10-12 µm.
Chemistry: Pannarin and porphyrilic acid (Kantvilas & Jarman 1999: 190; Elvebakk & Galloway 2003).
Substrate
Corticolous (twigs)
Attribution
Fact sheet prepared by Marley Ford (17 May 2021). Information in the Brief description, Distribution, Habitat, Features and Similar taxa sections copied from 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.