Lecanora atra

CijHigOg, Mr 374.35, prisms, mp. 195 C, yellow color with KOH and p-pheny lenediamine, soluble in benzene and chloroform. A. is a depside with antibiotic properties occurring in many lichens (e.g in Hypogymnia physodes and Lecanora atra). The biosynthesis proceeds via acetyl-CoA and orsellinic acid. 

Rankovic B, Kosanic M, Stanojkovic T (2011) Antioxidant, antimicrobial and anticancer activity of the lichens Cladonia furcata, Lecanora atra and Lecanora muralis. BMC Complement Altem Med. doi 10.1186/1472-6882-11-97... 

Acetone, methanol and aqueous extracts of the lichens Cetraria islandica, Lecanora atra, Parmelia pertusa, Pseudevernia furfuracea and Umbilicaria cylindrica were found to possess effective antioxidant activities (Kosanic and Rankovic 2011a). Antioxidant activities of the tested extracts were studied by DPPH radical scavenging, superoxide anion radical scavenging and reducing... 

Adspersion of paraphyses occurs as a useful valid character in several groups although the chemical nature is still unknown (Lecidella). The same holds true for the inclusion of oil drops in the hymenium (Buellia). Coloration of the whole hymenium (Lecidea, Rhizocarpon, Lecanora atra) is useful at the species or group level, at least in the tendency toward this trait, but the chemistry involved is quite unknown. 

Lecanora campestris Lecanora conizaeoides Lecanora atra Lecidea limitata Lecidea macrocarpa Baeomyces rufus Ochrolechia parella Pertusaria pertusa Xanthoria parietina Caloplaca heppiana Toninia coeruleonigricans Buellia canescens Graphis spp. 

Lecanora atra. Prolific discharge occurs from October to February during this period the peak values of germination are 40%. After spore dis-... 

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