Bulbothrix continua (Lynge) Hale. Phytologia

Thallus subirregularly laciniate, grayish green in the herbarium, up to 3.8 cm diam., subcoriaceous, corticolous; upper cortex 15.0−22.5 µm thick, algal layer 25.0−37.5 µm thick, medulla 67.5−85.0 µm thick, lower cortex 20.0−25.0 µm thick. Laciniae anisotomically to irregularly dichotomously branched, 0.8–1.9 (-2.3) mm wide, slightly imbricate, rarely becoming crowded at the center, adnate and adpressed, with flat, subtruncate apices; margins plane, smooth and sinuous to crenate, entire, occasionally sublacinulate; axils oval. Upper surface smooth and continuous, becoming rugose and irregularly cracked in some parts; laminal ciliary bulbs absent. Adventitious marginal lacinulae scarce and restrict to older parts, short, 0.2–0.5 × 0.1–0.5 mm, plane, simple to rarely furcate; apices truncate; lower side concolorous to the lower marginal zone. Maculae absent. Cilia black, without or with simple apices, commonly bent downwards, 0.05–0.40 × ca. 0.03 mm, with semi-immerse to emerse bulbate bases 0.05–0.15 (-0.25) mm wide, abundant throughout the margin spaced 0.05−0.10 mm from each other to contiguous, solitary or in small groups at the crenae and axils, scarce at the apices of the laciniae. Soredia, Pustulae and Isidia absent. Medulla white. Lower surface brown to pale brown, shiny to opaque, smooth to subrugose, weakly papillate, moderately rhizinate. Marginal zone brown to pale brown, indistinct from the center, shiny to opaque, smooth, weakly papillate, weakly to densely rhizinate. Rhizinae black to pale brown brown, partially white or with whitish apices when close to the margins, simple or sometimes irregularly branched, commonly with bulbate bases, 0.10–0.65 × 0.03–0.10 mm, frequent but becoming abundant close to the margins or scarce at some other parts, sometimes agglutinated, evenly distributed. Apothecia concave to plane or convex, adnate to sessile and distended over the laciniae, 0.4–3.7 mm diam., laminal; margin smooth to subcrenate, ecoronate; amphithecium smooth, without ornamentations. Disc pale brown, epruinose, imperforate; epithecium 15.0–20.0 mm high; hymenium 50.0−62.5 µm high; subhymenium 15.0−22.5 µm high. Ascospores ellipsoid to oval, 9.0–13.5 × 5.0–7.5 µm; epispore ca. 1.0 mm. Pycnidia common, laminal, immersed, with black ostioles. Conidia baciliform 5.0−7.5 × 1.0 µm. TLC/HPLC: cortical atranorin, medullary salazinic and consalazinic acids (see also Hale 1976).

South America: Brazil: State of Mato Grosso (Lynge 1914). Here is reported new for the Brazilian State of São Paulo.