Slideshow image
Lecanora cenisia Ach.
Family: Lecanoraceae
[Parmelia cenisia (Ach.) Fr.,  more]
Lecanora cenisia image
H.T. Lumbsch  
Thallus: crustose, continuous or verrucose-areolate or dispersed-areolate; prothallus: not visible areoles: flat or verrucose or verruculose, thin or thick, opaque, ecorticate surface: yellowish white to yellowish gray or whitish gray to gray, smooth or rough, epruinose, with an indistinct margin, esorediate Apothecia: sessile or adnate or constricted at the base to almost subpedicilate, 0.5-1.5 mm in diam., lecanorine disc: red-brown or yellowish brown or dark brown to blackish brown or gray-brown, plane, slightly whitish gray pruinose margin: concolorous with thallus, thick, persistent, even or prominent, 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: present, hyaline or pale yellow, distinct, basally thickened, gelatinous or interspersed, (10-)15-20(-30) µm thick laterally, 25-60 µm thick basally parathecium: hyaline, lacking crystals epihymenium: red-brown to orange-brown or brown to dark brown, with pigment dissolving in K, with crystals dissolving in K hymenium: clear; paraphyses: slightly thickened (up to 3 µm wide) apically, not pigmented; subhymenium: hyaline, 15-20 µm thick; hypothecium: hyaline, without oil droplets asci: clavate, 8-spored ascospores: hyaline, simple, broadly ellipsoid, 9.5-17.5 x (6-)6.5-8(-9) µm; wall: more than 1 µm thick Pycnidia: not seen Spot tests: K+ yellow, C-, KC-, P- or P+ pale yellow Secondary metabolites: atranorin (major), chloroatranorin (minor), and roccellic acid (major or absent). Substrate and ecology: usually on siliceous rocks across a wide range of habitats, or less frequently on wood World distribution: temperate Holartic known from northern Africa, Asia, Europe, and North America Sonoran distribution: Arizona, California, Baja California Sur, and Chihuahua. Note: Lecanora cenisia is one of the more common Lecanoras on rocks in montane areas. It is characterized by brown to black, slightly pruinose apothecial discs, a granulose epihymenium, and large amphithecial crystals. It is a very variable species regarding the color of the apothecial disc and the chemistry (Brodo 1984). Lecanora campestris can be similar, but is readily distinguished by a egranulose epihymenium and the small amphithecial crystals.
Lecanora cenisia image
Stephen Sharnoff  
Lecanora cenisia image
Stephen Sharnoff  
Lecanora cenisia image
Gary Perlmutter  
Lecanora cenisia image
Stephen Sharnoff  
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image
Lecanora cenisia image