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6 792155 Pilosocereus coerulescens (Lemaire) F.Ritter [80 225758 Cereus coerulescens Salm-Dyck]
L.K.G. Pfeiffer, F. Otto, Abbild. Beschr. Cact. (Coloured version), vol. 2 : p. 24, t. 24 (1839)
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