Calyx monophyllus, superus, imbricatus. Corolla multiplex. Bacca monolocularis, polysperma.
Empalement one-leafed, above, tiled. Blossom of many folds. Berry of one loculament, many-seeded.
SPECIFIC CHARACTER.
Cactus erectus, altissimus, maximus, sex-et octagonus, angulis distantibus, aculeos stellatos ferens. Calyx tubulosus, viridis: corollis radiatis, albis: petalis exterioribus læviter purpureis.
Habitat in Surinamo.
Cactus hexagonus. Willd. Sp. Pl.
Cactus with an upright stem, tall and large, six-and eight-sided, angles distant, bearing starry prickles. Empalement tubular, and green. Blossom rayed, and white: the outer petals slightly tinged with purple.
Native of Surinam.
REFERENCE TO THE PLATE.
1. A flower divested of the petals, and cut open to the base of the tube.
2. The seed-bud cut transversely.
3. One of the side shoots.
4. Miniature figure of the plant.