> Publishers' series
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21:
A taxonomic revision of the section Sideritis (Genus Sideritis) (Labiatae) with 13 tables ... by Concepción Obón de Castro and Diego Rivera Nuñez
Berlin; Stuttgart: Cramer in der Borntraeger-Verl.-Buchh., 1994
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5:
Pterocarpus (Leguminosae, Papilionaceae), revised for the world by Justo P. Rojo
Lehre: Cramer, 1972
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4:
The Bromeliaceae of Ecuador with 104 fig. on pl. by Amy Jean Gilmartin
Lehre: Cramer, 1972
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3:
The genus Pelea A. Gray (Rutaceae, Evodiinae) ; a taxonomic monograph ; with 70 figures, 9 plates and 22 maps by Benjamin C. Stone (Kuala Lumpur)
Lehre: Verlag von J. Cramer, 31. VII. 1969