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9. Marine Algae from Easter Island
Vol 2, Iss 3, Page 247, Date 1924
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10. Ein neues Sargassum von der Osterinsel
Vol 2, Iss 3, Page 311, Date 1924
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11. Die Flechten der Juan Fernandez-Inseln
Vol 2, Iss 3, Page 315, Date 1924
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12. The Musci of the Juan Fernandez Islands
Vol 2, Iss 3, Page 409, Date 1924
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5. The Phanerogams of Easter Island
Vol 2, Iss 2, Page 61, Date 1922
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6. Freshwater Alge from Juan Fernandez and Easter Island
Vol 2, Iss 2, Page 85, Date 1922
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7. The Phanerogams of the Juan Fernandez Islands
Vol 2, Iss 2, Page 95, Date 1922
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1. The Pteridophyta of the Juan Fernandez Islands
Vol 2, Iss 1, Page 1, Date 1920
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2. The Ferns of Easter Island
Vol 2, Iss 1, Page 47, Date 1920
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3. Die Myxomyceten der Juan Fernandez-Inseln
Vol 2, Iss 1, Page 55, Date 1920
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4. Die Gasteromyceten der Juan Fernandez- und Osterinseln
Vol 2, Iss 2, Page 59, Date 1922
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8. Musci Insulae-Paschalis
Vol 2, Iss 3, Page 241, Date 1924