FIGURE 6 in Lecanoroid lichens in the Galapagos Islands: the genera Lecanora, Protoparmeliopsis, and Vainionora (Lecanoraceae, Lecanoromycetes)

FIGURE 6. Species in the L. pallida-group. A–B. Lecanora caesiorubella. A. Rimose-areolate thallus with fimbriate white prothallus (Bungartz, F. 4466, CDS 28552). B. Thick exciple of thin-walled radiating hyphae, evenly pale brown throughout, inspersed by minute crystals (Aptroot, A. 64592, CDS 31165). C–G. Morphological variation of Lecanora cerebriformis. C–D. Specimen with continuous to barely rimose, not distinctly cerebriform thallus (Bungartz, F. 10260, CDS 47679). C. Thallus flat, only where apothecia form in the center the thallus becomes barely convoluted. D. Thick exciple of thin-walled radiating hyphae, evenly pale brown throughout, inspersed by minute crystals. E–G. Strongly cerebriform specimens. E. Thallus (Bungartz, F. 5215, CDS 29428). F. Lecanora-type asci (Bungartz, F. 6633, CDS 34853–holotype; in Lugol's iodine, DIC). G. Thick exciple of thin-walled radiating hyphae, evenly pale brown throughout, inspersed by minute crystals (Bungartz, F. 6633, CDS 34853–holotype). Scales: A, C & E = 5 mm; B, D & G = 100 µm; F = 10 µm.