Common Goldspeck Lichen
Candelariella vitellina
Description 6
Thallus: areolate to subsquamulose, scattered to crowded to pulvinate, variable but often with very small lobate areoles (lion claws); areoles: flat to convex, almost granular to irregular and somewhat incised to form minute and indistinct lobes up to c. 0.5 mm long; surface: green yellow to orange yellow, smooth to uneven; cortex: pseudoparenchymatous, 7-15 µm thick; Apothecia: common, lecanorine, 0.35-1.0 mm wide; disc: darker yellow than the thallus, round, flat to somewhat convex with age; margin: thin to thick, entire to crenulate, persistent; exciple: often visible from the outside, thin to thick; epihymenium: yellow-brown; hymenium: hyaline, 55-75 µm tall; paraphyses: simple or sparingly branched apically, cylindrical or with weakly swollen tips, up to 3.5 µm wide; hypothecium: hyaline; asci: clavate, 16-24-spored; ascospores: hyaline, simple to 1-septate, oblong to ellipsoid, 8-12 x 3.5-5; Pycnidia: sparse, appear as darker yellow spots on the thallus; conidia: hyaline, oblong to ellipsoid, 2.5-3 x 1.2-1.5 µm; Spot tests: K+ reddish, KC-, C-; Secondary metabolites: calycin, pulvinic acid, pulvinic dilactone and vulpinic acid.; Substrate and ecology: on calcium free rocks, wood and bark; World distribution: world-wide; Sonoran distribution: common outside the deserts, mainly on rocks in open montane and coastal habitats in southern California, Arizona and Baja Califormia, up to at least 3500 m.; Notes: Candelariella vitellina is a common and widespread species. Its thallus is rather variable in size and shape but is generally a miniature of C. rosulans in appearance. Its visible exciple is usually a distinguishing character between the two. Compared to C. lutella, it is mostly much larger and forms thicker and more conspicuous thalli.
Fuentes y créditos
- (c) licensed media from BioImages DwCA without owner, algunos derechos reservados (CC BY-NC-SA), http://www.bioimages.org.uk/html/../image.php?id=31205
- (c) André Aptroot, algunos derechos reservados (CC BY-NC-SA), http://www.tropicallichens.net/photopath/candelariella-vitellina-taiwan.jpg
- (c) licensed media from BioImages DwCA without owner, algunos derechos reservados (CC BY-NC-SA), http://www.bioimages.org.uk/html/../image.php?id=11669
- (c) licensed media from BioImages DwCA without owner, algunos derechos reservados (CC BY-NC-SA), http://www.bioimages.org.uk/html/../image.php?id=11670
- (c) licensed media from BioImages DwCA without owner, algunos derechos reservados (CC BY-NC-SA), http://www.bioimages.org.uk/html/../image.php?id=11694
- (c) Lichen Unlimited: Arizona State University, Tempe., algunos derechos reservados (CC BY-NC-SA), http://eol.org/data_objects/10548253
