Studies on the Lichen Parmotrema rigidum s. lat. from North and South America

Robert S. Egan; Robert Harms; Todd Widhelm

doi:10.1639/0007-2745(2005)108[0402:SOTLPR]2.0.CO;2

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1 September 2005 Studies on the Lichen Parmotrema rigidums. lat. from North and South America

Robert S. Egan, Robert Harms, Todd Widhelm

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The Bryologist, 108(3):402-405 (2005). https://doi.org/10.1639/0007-2745(2005)108[0402:SOTLPR]2.0.CO;2

Abstract

In North America, the common and abundant coastal, corticolous species currently known as Parmotrema rigidum (Lynge) Hale, is shown to be morphologically distinct from the South American type and other South American representatives of the species based on both ascospore and conidial size. We describe the North American taxon as Parmotrema subrigidum Egan sp. nov., recognizing two chemical strains, one with atranorin and alectoronic acid and a second with atranorin, alectoronic, and norstictic acids.

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Robert S. Egan, Robert Harms, and Todd Widhelm "Studies on the Lichen Parmotrema rigidums. lat. from North and South America," The Bryologist 108(3), 402-405, (1 September 2005). https://doi.org/10.1639/0007-2745(2005)108[0402:SOTLPR]2.0.CO;2

Received: 10 March 2005; Accepted: 1 May 2005; Published: 1 September 2005

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