Flora of New Zealand Series

≡Phlyctella subuncinata (Stirt.) D.J.Galloway, N. Z. J. Bot. 21: 196 (1983).

=Phlyctis egentior Nyl. in C. Knight., Trans. N. Z. Inst. 7: 356 (1875).

=Phlyctella abstersa Kremp., Verhandl. zool.-bot. Ges. Wien26: 453 (1876).

=Phlyctis egentior var. pallidula Nyl., Lich. Nov. Zel.: 73 (1888).

Lectotype: New Zealand. Wellington, J. Buchanan 11 – BM [fide Galloway (1985a: 389)]. Isolectotype ?WELT.

Phlyctis egentior. Lectotype: New Zealand. Sine loco [probably Wellington], 1867, Charles Knight 45a – H-NYL 22318 [fide Galloway (1985a: 389)].

Phlyctis abstersa. Lectotype: New Zealand. Sine loco [probably Wellington], Charles Knight – M123–80/9 [fide Galloway (1985a: 389)].

Phlyctis egentior var. pallidula. Lectotype: New Zealand. Sine loco [probably Wellington], 1882, Charles Knight – H-NYL 22322 [fide Galloway (1985a: 389)].

Description : Flora (1985: 388–389 – as Phlyctella subuncinata).

Chemistry : Thallus K+ yellow; containing stictic and constictic acids and an unidentified compound.

N: Northland to Wellington. S: Nelson to Southland. A widely distributed pioneer species on smooth bark. Known also from E Australia [Phlyctis wilsonii Müll.Arg., is a synonym of P. uncinata (Galloway 1985a: 388–389; Kantvilas 1990c)] and Tasmania (Kantvilas & James 1991; McCarthy 2003c, 2006).

Australasian

Illustrations : Knight (1875a: pl. XXIII, fig. 1 – as Phlyctis egentior); Nylander (1888: tab. 1, fig. 13 – as Phlyctella egentior).

Phlyctis subuncinata is characterised by: the corticolous habit; irregular, fleck-like, white, sorediate-leprose patches marking the position of immersed, clustered apothecia; hyaline, fusiform, 7-septate ascospores, 40–72 × 5–7 μm; and stictic acid in the medulla.