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Parmotrema xanthinum (Mull. Arg.) Hale (redirected from: Parmotrema madagascariaceum)
Family: Parmeliaceae
[Parmelia chrysantha Tuck.,  more]
Parmotrema xanthinum image
Stephen Sharnoff  
Thallus: foliose, loosely adnate, 3-20 cm in diam., lobate lobes: subirregular, elongate, slightly imbricate, plane, separate, 8-12 mm wide; apices: rotund, becoming crenate and dissected with age, ciliate; cilia: up to 2.5 mm long upper surface: yellow green, smooth, dull, epruinose, emaculate, finely reticulately cracked with age isidia: simple to coralloid branched, often apically ciliate, common, initially laminal but becoming submarginal to marginal with age; soredia and pustulae: absent medulla: pale orange yellow with continuous algal layer lower surface: black with brown naked zone peripherally, centrally rhizinate; rhizines: simple Apothecia: not seen Pycnidia: not seen Spot tests: upper cortex K+ yellow, C-, KC-, P-; medulla K-, C-, KC+ red or KC-, P- Secondary metabolites: upper cortex with usnic acid (major) atranorin (trace); medulla with protolichesterinic acid (major). Substrate and ecology: trees or rocks in open habitats World distribution: pantropical and southern Africa Sonoran distribution: oak and pine forests of the Sierra Madre Occidental in Sinaloa.
Parmotrema xanthinum image
Stephen Sharnoff  
Parmotrema xanthinum image
Troy McMullin  
Parmotrema xanthinum image
Gary Perlmutter  
Parmotrema xanthinum image
Stephen Sharnoff  
Parmotrema xanthinum image
Stephen Sharnoff  
Parmotrema xanthinum image
Stephen Sharnoff  
Parmotrema xanthinum image
Parmotrema xanthinum image
Parmotrema xanthinum image
Parmotrema xanthinum image
Parmotrema xanthinum image
Parmotrema xanthinum image
Parmotrema xanthinum image
Parmotrema xanthinum image
Parmotrema xanthinum image
Parmotrema xanthinum image
Parmotrema xanthinum image
Parmotrema xanthinum image
Parmotrema xanthinum image
Parmotrema xanthinum image
Parmotrema xanthinum image
Parmotrema xanthinum image
Parmotrema xanthinum image
Parmotrema xanthinum image
Parmotrema xanthinum image
Parmotrema xanthinum image
Parmotrema xanthinum image
Parmotrema xanthinum image
Parmotrema xanthinum image
Parmotrema xanthinum image
Parmotrema xanthinum image
Parmotrema xanthinum image
Parmotrema xanthinum image
Parmotrema xanthinum image
Parmotrema xanthinum image