Slideshow image
Parmotrema subisidiosum (Müll. Arg.) Hale & Fletcher
Family: Parmeliaceae
[Parmelia subisidiosa (Müll. Arg.) C. W. Dodge,  more]
Parmotrema subisidiosum image
Stephen Sharnoff  
Thallus: foliose, loosely adnate to adnate, 3-10 cm in diam., lobate lobes: subirregular, elongate, slightly imbricate, plane, separate, 5-12 mm wide; margin: becoming dentate or lacinate with age; lacinae: 5-10 x 1-2 mm; apices: rotund, ciliate; cilia: sparse, simple, up to 2.0 mm long upper surface: gray to green-gray, smooth, dull, strongly reticulate maculate, becoming reticulately cracked with age along the maculae, isidiate isidia: laminal and marginal, cylindrical, simple to branched, tips often bearing cilia, more common marginally; soredia and pustulae absent medulla: white with continuous algal layer lower surface: black with brown zone peripherally, rhizinate to margin; rhizines: scattered, mostly simple, sometimes bifurcate to squarrose Apothecia: rare, up to 5 mm wide; margin: thalline, isidiate; disc: brown, imperforate or perforate ascospores: simple, hyaline, ellipsoid, 12-14 x 6-10 µm Pycnidia: common, immersed conidia: filiform, 10-12 x 1 µm Spot tests: upper cortex K+ yellow, C-, KC-, P+ yellow; medulla K+ yellow turning deep red, C-, KC-, P+ orange Secondary metabolites: upper cortex with atranorin and chloroatranorin; medulla with salazinic acid (major) and consalazinic acids (minor). Substrate and ecology: usually on trees World distribution: Arizona to Central America, east Africa Sonoran distribution: Sierra Madre Occidental of Chihuahua and Sonoran and southern Baja California Sur.
Parmotrema subisidiosum image
Stephen Sharnoff  
Parmotrema subisidiosum image
Parmotrema subisidiosum image
Parmotrema subisidiosum image
Parmotrema subisidiosum image
Parmotrema subisidiosum image
Parmotrema subisidiosum image
Parmotrema subisidiosum image
Parmotrema subisidiosum image
Parmotrema subisidiosum image
Parmotrema subisidiosum image
Parmotrema subisidiosum image
Parmotrema subisidiosum image
Parmotrema subisidiosum image
Parmotrema subisidiosum image
Parmotrema subisidiosum image
Parmotrema subisidiosum image
Parmotrema subisidiosum image
Parmotrema subisidiosum image
Parmotrema subisidiosum image
Gary Perlmutter  
Parmotrema subisidiosum image
Parmotrema subisidiosum image
Parmotrema subisidiosum image
Parmotrema subisidiosum image
Parmotrema subisidiosum image
Parmotrema subisidiosum image
Parmotrema subisidiosum image
Parmotrema subisidiosum image
Parmotrema subisidiosum image
Parmotrema subisidiosum image
Parmotrema subisidiosum image
Parmotrema subisidiosum image
Parmotrema subisidiosum image
Parmotrema subisidiosum image
Linda Phillips  
Parmotrema subisidiosum image
Parmotrema subisidiosum image
Parmotrema subisidiosum image
Parmotrema subisidiosum image
Parmotrema subisidiosum image
Parmotrema subisidiosum image
Parmotrema subisidiosum image
Parmotrema subisidiosum image
Parmotrema subisidiosum image
Parmotrema subisidiosum image
Parmotrema subisidiosum image
Parmotrema subisidiosum image
Parmotrema subisidiosum image
Parmotrema subisidiosum image
Parmotrema subisidiosum image
Parmotrema subisidiosum image
Parmotrema subisidiosum image
Parmotrema subisidiosum image