The saxicolous, xanthone-containing species of the genus Buellia s.l. (Physciaceae, Ascomycota) in the Iberian Peninsula

Tetramelas thiopolizus comb. nov. with a key to all known species of Tetramelas

“…Culberson & Ammann 1979;Culberson et al 1981;Culberson & Johnson 1982) and high performance liquid chromatography (HPLC) (Elix et al 2003 The key to species has been constucted from our own data and the following literature: Nordin (1999Nordin ( , 2000Nordin ( , 2004, Giralt et al (2000Giralt et al ( , 2009, Marbach (2000), Foucard et al (2002), Kalb (2004), Nordin & Tibell (2005) and Bungartz et al (2007). Fig.…”

“…The genus was resurrected by Marbach (2000). Later, it was emended with the addition of new diagnostic characters: the presence of 6-O-methylarthothelin (Kalb 2004), the relative thickness of the parts of the ascospore wall (proper wall >1/2 thickness of the perispore) (Nordin 2004) and the inner wall thickenings of the ascospores (±Callispora-type) (Giralt et al 2009). Since then, thirteen species have been combined into this genus and one new species has been described.…”

“…Concerning the medullar reaction with iodine, it has been shown to be variable in other species of Tetramelas, as, for example, in T. concinnus (cf. Scheidegger 1993;Bungartz et al 2004 andGiralt et al 2009). …”

“…Fr.) H. Mayrhofer & Poelt. A second aim of this study is to provide a key for all known Tetramelas species, which are so far treated in many dispersed contributions (Marbach 2000;Kalb 2004;Nordin 2004;Nordin & Tibell 2005;Giralt et al 2009). …”

New species and new records of buellioid lichens (Physciaceae, Ascomycota) from New Zealand

“…Tetramelas allisoniae exhibits all of these characteristics. In many respects this new species resembles T. concinnus, a widely distributed species in the Northern Hemisphere (Bungartz et al 2008, Giralt et al 2009). Both lichens are characterized by the presence of arthothelin, an amyloid medulla and similar ascospores (which may become 2-or 3-septate at maturity), conidia and apothecial anatomy including similar reactions of the hypothecium and epihymenium.…”