Flora of New Zealand Series

≡Pannaria gymnocheila Nyl., Bot. J. Linn. Soc. 9: 250 (1866).

Holotype: New Zealand. Otago, "ad cortices arborum prope Dunedin" 1861, W.L.Lindsay – H-NYL 31061. Isotype: New Zealand. Otago, Martin's Bush, Chain Hills, x.1861, W. Lauder Lindsay – E [the lectotypification of this name (Galloway 1985a: 347) is in error, as Nylander's protologue states "ad cortices arborum prope Dunedin, 1861", which agrees with Nylander's H-NYL specimen, which is annotated in Nylander's hand "Nova Zelandia prope Dunedin 1861, Dr. L.Lindsay". Thus H-NYL 31061 is correctly considered the holotype, with Lauder Lindsay's personal herbarium material (E) as isotype].

Description : Flora (1985: 347).

Chemistry : TLC−, all reactions negative.

N: Northland (Cavalli Is), Auckland (Anawhata Beach), South Auckland (Waikato River bridge near Tuakau). S: Otago, from both inland (upper Pomahaka Valley) to coastal sites (Waikouaiti, Saddle Hill, Taieri Mouth, the Nuggets). Epiphytic on trees and shrubs (Alnus glutinosa, Griselinia littoralis, Rhopalostylis sapida, Melicytus ramiflorus, Olearia odorata) s.l. to 300 m. Known also from New South Wales, Western Australia and Tasmania (Jørgensen 2001b: 131; McCarthy 2003c, 2006).

Australasian

Illustration : Jørgensen (2001b: 130, fig. 10).

Parmeliella gymnocheila is characterised by: the corticolous habit; the rosette-forming to spreading thallus on a thick black or greyish prothallus; thick, somethat flabellate marginal lobes, more crustose centrally, with pale-fawnish to grey-blue, scabrid-areolate upper surface (×10 lens); coarsely granular, grey-blue soralia, crowded at margins and often forming a ±diffract-areolate crust centrally; scattered to crowded concave apothecia with red-brown discs and prominent, thick, pale-whitish or pinkish proper margins, sometimes densely surrounded with crowded soredia. P. granulata is similar in overall morphology, but lacks soredia and has smaller spores.