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Key to the Cladoniaceae of the Guianas
P- (perlatolic acid); forming broad, dense, semiglobose heads; trichotomic branchings often frequent; no main axis distinguishable C. confusa 3b P+ ... heads narrow, not semiglobose C. atrans 8b Stereome and tips not or little blackening; isotomy pronounced but main axes sometimes distinguishable in basal parts; forming broad rounded, often semiglobose heads ...
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