Monographs Details: Lagenocarpus griseus (Boeckeler) H.Pfeiff.
Authority: Maguire, Bassett. 1965. The Botany of the Guayana Highland. Mem. New York Bot. Gard. 12 (3): 1-285.
Discussion:Cryptangium griseum Bockeler, Allg. Bot. Zeitschr. 2: 143. 1896. Lagenocarpus vestitus C. B. Clarke, Kew Bull. Add. Ser. 8, 64. 1908. Syn. nov. Lagenocarpus sericeus H. Pfeiffer in Pedde, Eepert. Sp. Nov. 18: 83. 1922. Syn. nov. This species contains both monoecious and dioecious plants. The type of Cryptangium griseum is a pistillate plant, while the type of Lagenocarpus sericeus is a staminate one. C. B. Clarke, in his original description of L. vestitus, cited Glaziou 20059, which is the holotype of Cryptangium griseum. The other syntype cited by Clarke, Riedel [476] from Tymbo-peba, was determined from a photo as L. griseus. Therefore L. vestitus is synonymous with L. griseus.