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Index Kewensis plantarum phanerogamarum. nomina et synonyma omnium generum et specierum ab initio anni MDCCCCXXI usque ad finem anni MDCCCCXXV complectens Supplementum septimum - Royal Botanic Gardens, Kew. (e prelo Clarendoniano)

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Just's Botanischer Jahresbericht - Just, Johann Leopold, 1841 -1891 (Gebruder Borntraeger, 1925)

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Répertoire des noms génériques mentionnés dans l'Index kewensis et ses quinze premiers suppléments = Guide to the generic names appearing in the Index Kewensis and its fifteen supplements = Repertorio de los nombres genericos enumerados en el Index Kewensis y sus quince suplementos = Repertorium der im Index Kewensis und seinen fuenfzehn ersten Supplementen erwaehnten Gattungsnamen - Rouleau, Ernest 1916 -1991 (Châtelain, 1981)

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Smithsonian contributions to botany - Smithsonian Institution (Smithsonian Institution Press, 1981)

Smithsonian contributions to botany - Smithsonian Institution (Smithsonian Institution Press, 1981)

Smithsonian contributions to botany - Smithsonian Institution (Smithsonian Institution Press, 1981)

Smithsonian contributions to botany - Smithsonian Institution (Smithsonian Institution Press, 1981)