Lichens Pan-Z (2007) - Flora of New Zealand Lichens - Revised Second Edition Pan-Z
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Trapeliopsis

TRAPELIOPSIS Hertel & Gotth. Schneid., 1980

Type : Trapeliopsis wallrothii (Flörke ex Spreng.) Hertel & Gotth. Schneid. [Lecidea wallrothii Flörke ex Spreng.]

Description : Flora (1985: 584).

Key

1
Thallus crustose, warted-areolate
2
Thallus squamulose or microphylline
4
2
Thallus without orange-red patches; all parts K−
3
Thallus with irregular, orange-red patches, K+ purple
3
Soralia when present, grey-green to dark-green, often tinged blue-green; ascospores 7–9.5 × 2.5–4 μm
Soralia when present, whitish to brown-yellow, sometimes tinged grey-green; ascospores 9–14 × 4–6 μm
4
Thallus swollen-squamulose; upper surface glaucous-green; marginal, labriform soralia prominent; lower surface orange- brown or yellowish; apothecia purplish
Thallus microphylline-subsquamulose; upper surface grey-green to dark olive-green; soralia absent; lower surface not orange-brown; apothecia rusty red-brown

Trapeliopsis is a genus of 15 widespread species (Printzen & McCune 2004), distributed in Europe, Africa, North America, Australia and New Zealand, and included in the family Agyriaceae (Lumbsch 1997b; McCune et al. 2002; Eriksson et al. 2004; Pennycook & Galloway 2004; Eriksson 2005). The genus was originally restricted to squamulose species (Schneider 1980; Palice & Printzen 2004), but subsequently crustose taxa were added to it (Coppins & James 1984; Purvis et al. 1992: 612; Tønsberg 1992b; McCune et al. 2002). Trapeliopsis differs from Trapelia by differences in ascomatal ontogeny and hamathecium structure (Lumbsch et al. 1993; Lumbsch 1997b). Five species are known from New Zealand.

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