Flora of New Zealand Series

≡Sticta intricata Delise, Mém. Soc. linn. Calvados [Normandie] 2: 96 (1825) ["1822"]. [For typification and additional synonymy see Galloway (1988a: 169)].

=Sticta limbata var. subflavida C.Bab. in J.D. Hooker, Fl. Nov. Zel. 2: 283 (1855).

≡Stictina limbata var. subflavida (C.Bab.) Hue, Nouv. Archs Mus. Hist. Nat. Paris, sér. 3, 2: 300 (1890).

=Stictina intricata var. subargyracea Nyl., Lich. Nov. Zel.: 29 (1888).

≡Sticta intricata f. subargyracea (Nyl.) Hue, Nouv. Archs Mus. Hist. Nat. Paris, sér. 4, 3: 90 (1901)

Sticta limbata var. subflavida. Lectotype: New Zealand. Middle I. [South I.], Sine loco, D. Lyall – BM [fide Galloway (1988a: 169)].

Stictina intricata var. subargyracea. Lectotype: New Zealand. Sine loco [probably near Greymouth, Westland], R. Helms 35 – W [fide Galloway (1988a: 169)].

Descriptions : Flora (1985: 448). See also Galloway (1988a: 171).

Chemistry : Tenuiorin (tr.), methyl gyrophorate (tr.), 7β-acetoxyhopan-22-ol, hopane-7β, 22-diol (tr.), hopane-15α,22-diol.

N: Northland (Radar Bush) to Cook Strait. S: Nelson to Southland. St: (Oban to Port Pegasus). Throughout [map in Galloway (1988a: 173, fig. 83)], both E and W of the Main Divide, s.l. to 1150 m. It is primarily a forest species, growing on bark, among other lichens, and in very damp, shaded habitats, among mosses on twigs of shrubs. It is tolerant of a wide range of light regimes, being found in dense shade and from rocks exposed to full sunlight at forest and scrub margins in areas of moderate to high rainfall. Generally it is a good indicator of humid habitats. It is known also from oceanic environments in Great Britain, France, Norway and the Faroe Is (Degelius 1935; Purvis et al. 1992; Santesson 1993), Macaronesia, Tristan da Cunha, the Caribbean, the palaeotropics from South Africa to Hawai'i, Australia, Tasmania and South America (Jørgensen 1977; Swinscow & Krog 1988; Galloway & Arvidsson 1990; Galloway 1992c, 1994b; Galloway & Quilhot 1999; Galloway et al. 2001b; McCarthy 2003c, 2006).

Cosmopolitan

Illustrations : Delise (1825: pl. 7, fig. 33 – as Sticta intricata); Galloway & James (1986: 482–483; fig. 25B); Galloway (1988a: 170, fig. 82; 1992: fig. 29); Kantvilas & Jarman (1999: 8, 122); Flora of Australia 58A (2001: 99, pl. 40); Dobson (2005: 370).

Pseudocyphellaria intricata is characterised by: irregularly laciniate to broadly rounded lobes with sinuous, incised or partly entire, often sorediate margins; a plane, undulate to minutely wrinkled or subfaveolate, rather coriaceous upper surface, with scattered erose, laminal and marginal soralia containing coarsely granular, often pseudoisidiate, grey-white to white soredia; a white medulla; a cyanobacterial photobiont; a pale yellow-buff to chocolate-brown, tomentose lower surface, with occasional to rare, widely scattered, white pseudocyphellae immersed in tomentum; and a simple two-hopane chemistry with traces of tenuiorin and methyl gyrophorate. It may be parasitised by the lichenicolous fungus * Arthrorhaphis grisea (q.v.).