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Lecanora leprosa
EOL Text
Thallus: crustose, continuous or rimose-areolate or verrucose-areolate; prothallus: not visible, or white; areoles: flat or verrucose or verruculose, thin, opaque, ecorticate; surface: yellowish white to yellowish gray or yellowish green, smooth, epruinose, with an indistinct margin, esorediate; Apothecia: subimmersed when young, sessile when mature or sessile, 0.3-0.8 mm in diam., lecanorine; disc: orange-brown or yellowish brown, plane, epruinose; margin: concolorous with thallus, thin or thick, persistent or becoming excluded, even, not flexuose, smooth, entire or verrucose or verruculose, without a parathecial ring; amphithecium: present, with numerous algal cells, with large crystals insoluble in K, corticate; cortex: hyaline, indistinct, basally not thickened, interspersed, (10-)17-25(-26) µm thick laterally, 10-25 µm thick basally; parathecium: hyaline, containing crystals insoluble in K; epihymenium: red-brown to orange-brown, with pigment dissolving in K, with crystals dissolving in K; hymenium: hyaline, clear; paraphyses: not thickened or slightly thickened (up to 2.5 µm wide) apically, not pigmented; subhymenium: hyaline, 15-20 µm thick; hypothecium: hyaline or pale yellow to yellowish brown, without oil droplets; asci: clavate, 8spored; ascospores: hyaline, simple, ellipsoid or narrowly ellipsoid, (9-)9.5-13.5(-14) x (5-)6-7(-7.5) µm; wall: less than 1 µm thick; Pycnidia: immersed, cerebriform; conidiophores: type II sensu Vobis; conidia: filiform, 15-19 µm long; Spot tests: thallus and apothecial margin K+ yellow, C-, KC-, P+ pale orange; Secondary metabolites: atranorin (major), chloroatranorin (minor), chlorolecideoidin (minor), gangaleoidin (major), leoidin (minor) and norgangaleoidin (minor).; Substrate and ecology: on bark of deciduous trees; World distribution: pantropical, known from Africa, Asia, Australasia, North and South America, and the Pacific area; Sonoran distribution: Sinaloa.; Notes: Lecanora leprosa is characterized by its orange to yellowish brown apothecial discs, its granulose epihymenium and the presence of the gangaleoidin chemosyndrome. It is similar to L. achroa and L. helva. The differences are discussed under these species.
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=53831 |
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=Lecanora+leprosa |