A Note on Pustulate or Sorediate Species of Cetrariastrum (Parmeliaceae)
1999 Volume 74 Issue 4 Pages 251-255
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1999 Volume 74 Issue 4 Pages 251-255
Pustulate or sorediate species of Cetrariastrum are revised. A new species, C. chilense, is described from Chile. It is related to C. sorocheilum, a widely distributed species, from which it is readily distinguished by the presence of rhizines on the lower surface. The differences between C. columbiense and C. subplanum are discussed and C. subplanum is reported from eastern Asia. A key to the pustulate and/or sorediate species of the genus is given.
