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You searched for: Author/Creator Walter, Helmut E.

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1. An integrative approach to understanding the evolution and diversity of Copiapoa (Cactaceae), a threatened endemic Chilean genus from the Atacama Desert. Issue 9 (15th September 2015)

3. Molecular phylogeny of the large South American genus Eriosyce (Notocacteae, Cactaceae): Generic delimitation and proposed changes in infrageneric and species ranks. Issue 3 (28th August 2019)