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Citrine–Green Taxa in the Genus Candelariella

  • O. L. Gilbert (a1), A. Henderson (a2) and P. W. James (a3)

Abstract

The citrine–green Candelariella flavovirella (Nyl.) Lettau and C. heidelbergensis (Nyl.) Poelt are shown to differ from the yellow-orange species C. vitellina (Hoffm.) Mull. Arg. and C. aurella (Hoffm.) Zahlbr. respectively, mainly in the suppression of calycin. As distinctive and geographically scattered chemotypes it is suggested that the rank of form is most appropriate and the required new combinations are made. A citrine–green population of C. medians (Nyl.) A. L. Sm. is described as f. steepholmensis O. Gilbert f.nov.

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Citrine–Green Taxa in the Genus Candelariella

  • O. L. Gilbert (a1), A. Henderson (a2) and P. W. James (a3)

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