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Lecanora symmicta
EOL Text
Thallus: crustose, warted-areolate, warts often coalescing to form a rimose crust; prothallus: occasionally present, white, around thallus and between areoles; areoles: isodiametric in outline, sometimes irregularly incised or proliferating, 0.10-0.15 mm in diam., moderately to strongly convex, ecorticate but sometimes with a loose unorganised alga-free layer of various hyphae; surface: yellowish or greenish beige to gray, dull, occasionally covered with terpenoid crystals, esorediate; Apothecia: rounded to flexuose, sometimes tuberculate, single or in groups of 2-3, rarely densely crowded, sessile with a ±constricted base, 0.35-0.70 mm in diam.; disc: yellowish beige to orange-brown or ochre, sometimes with an olive tinge, weakly to strongly convex or rarely flat, dull, usually with a fine white pruina, rarely epruinose; margin: lacking or rarely present as a weakly prominent rim and soon excluded, without a parathecial ring; amphithecium: lacking; parathecium: biatorine, hyaline within, outer part with granules (soluble in K) like in the epihymenium, laterally 20-65 µm, basally 20-70 µm wide, with strongly gelatinized, branched, anastomosing, radiating hyphae with narrowly cylindrical lumina 0.7-1(-1.5) µm wide (lumina of apical cells 1-1.5(-2) µm wide); epihymenium: greenish ochre to orange-brown, (coarsely) granular, 5-15 µm thick; hymenium: hyaline to pale yellow-brown, 35-50 µm tall; paraphyses: hyaline, weakly branched and anastomosing, with lumina basally 0.7-1 µm wide and apically 1-1.5 µm wide; subhymenium: hyaline, 25-55(-75) µm thick; hypothecium: hyaline, 30-90 µm thick; asci: clavate, 8-spored; ascospores: hyaline, simple or very rarely 1-septate, narrowly ellipsoid, (7-)9.2-12.1(-13.5) x (3-)3.5-4.4(-5.5) µm; Pycnidia: not observed; Spot tests: thallus K-, C-, KC-, P-; Secondary metabolites: usnic acid, zeorin, arthothelin, ±thiophanic acid, ±4,5-dichloronorlichexanthone (tr.), norlichexanthone (tr.).; Substrate and ecology: mostly conifer bark above 1950 m; World distribution: North America and Eurasia; Sonoran distribution: Arizona, southern California, and Chihuahua.; Notes: Lecanora butyracea is very similar but has broader ascospores. Lecanora confusa and related species may resemble L. symmicta, because the apothecial margin is often excluded in older apothecia. Young apothecia of these species are, however, always marginate.
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | Lichen Unlimited: Arizona State University, Tempe. 2002-2011 |
Source | http://symbiota.org/nalichens/taxa/index.php?taxon=53900 |
Canada
Origin: Native
Regularity: Regularly occurring
Currently: Present
Confidence: Confident
United States
Origin: Unknown/Undetermined
Regularity: Regularly occurring
Currently: Unknown/Undetermined
Confidence: Confident
License | http://creativecommons.org/licenses/by-nc/3.0/ |
Rights holder/Author | NatureServe |
Source | http://explorer.natureserve.org/servlet/NatureServe?searchName=Lecanora+symmicta |
Rounded Global Status Rank: G5 - Secure
Reasons: This lichen species occurs throughout Canada and the northern U.S. , from Alaska east through the Great Lakes region and the Appalachians to the Island of Newfoundland, and from Alaska south to central California. Several scattered disjunctions also occur in the central U.S.
Rounded Global Status Rank: GNR - Not Yet Ranked
License | http://creativecommons.org/licenses/by-nc/3.0/ |
Rights holder/Author | NatureServe |
Source | http://explorer.natureserve.org/servlet/NatureServe?searchName=Lecidea+aitema |