Lichens Pan-Z (2007) - Flora of New Zealand Lichens - Revised Second Edition Pan-Z
Copy a link to this page Cite this record

Topelia

TOPELIA P.M.Jørg. & Vězda, 1984

Type : Topelia rosea (Servít) P.M.Jørg. & Vězda [Microglaena rosea Servít]

Description : Thallus crustose, often poorly developed and delimited. Photobiont Trentepohlia, cells 122–15 × 10–12 μm. Ascomata perithecia, 0.2–0.6 mm diam., carneous to ochraceous, darker in the upper parts, completely black in one species; with a narrow, punctiform pore which may widen at maturity giving an apothecioid appearance. Perithecia partly immersed in thallus, but always clearly protruding. Exciple 30–60 μm thick, hyaline to brownish black, of short-celled hyphae ±cellular, particularly in upper and inner parts. Periphyses short-celled, stiff, up to 45 × 2 μm, especially well-developed around pore. Hymenium I+ blue-green, rapidly turning red-brown. Hamathecium of slender paraphyses, 200 × 1.5(–2) μm, flexuous, unbranched and without any apical thickening, some intimately associated with asci. Asci narrowly cylindrical, 100–180 × 12–18 μm, tapering apically, unitunicate, thin-walled, without apical thickening or apparatus. Ascopores 8 per ascus, hyaline, thin-walled, muriform.

Chemistry : TLC negative.

Topelia, a genus of five species (Kirk et al. 2001), doubtfully included in the family Stictidaceae (Eriksson et al. 2004 Pennycook & Galloway 2004), was described to accommodate a small number of pyrenocarpous lichens some of which had earlier been mistakenly attributed to Clathroporina and Microglaena (Jørgensen & Vězda 1984). Species are known from southern and western Europe, Cuba, Central America and California (McCarthy 1993c; Nash & Nimis 2002). One species is known from New Zealand, the first record of the genus in the Southern Hemisphere (McCarthy 1993c).

Click to go back to the top of the page
Top