Nephroma cellulosum var. isidioferum
Synonyms
Nephroma lepidophyllum
Family
Nephromataceae
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 corticolous habit; the coarse, terete, squamiform phyllidia along ridges between faveolae, at lobe margins, and fringing margins of apothecia.
Distribution
South Island: Nelson (Maruia Valley); Canterbury (Nina Valley, Otepatotu Reserve, Banks Peninsula, Peel Forest); Otago (Leith Valley, Flagstaff); Southland (Sutherland Falls). Still poorly collected in New Zealand.
Known also from southern Argentina, Chile, and eastern Australia.
Habitat
On bark of Fuchsia and Leptospermum, Nothofagus [Fuscospora spp., Lophozonia menziesii] and Podocarpus in shaded, humid habitats; rarely on rocks, 300–600 m.
Detailed description
Thallus orbicular to spreading, 5-15 cm diam., corticolous or muscicolous. Lobes rounded, flattened, closely attached centrally, subascendent apically, margins entire, rounded, sinuous. Upper surface markedly faveolate-reticulate, faveolae 2-3 mm wide, separated by well-defined ridges, olive-brown to reddish-brown to greyish-red or grey (shade forms), matt or shining in parts, sometimes white-maculate (×10 lens). With coarse, terete to squamiform phyllidia along ridges between faveolae, at margins of lobes and fringing the margins of apothecia. Lower surface distinctly bullate, shining, creamish-buff at margins, dark grey-brown centrally, glabrous. Apothecia pale to dark brown, 5-10 mm broad and 2-5 mm long with a narrow, entire margin. Ascospores biseriate, pale brownish, 2-septate, 14-20 × 7-8 µm.
Chemistry: Zeorin, unidentified terpene (as in N. cellulosum) perlatolic acid and unidentified pigment (±).
Similar taxa
As for N. cellulosum var. cellulosum but with coarse, terete to squamiform phyllidia along ridges between faveolae, at margins of lobes and fringing the margins of apothecia. The backs of the apothecia are also ± areolate-scabrid.
Substrate
Corticolous
Attribution
Fact sheet prepared by Melissa Hutchison (28 December 2021). Brief description, Distribution, Habitat, Features, and Similar taxa sections copied from Galloway (1985, 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.