FIGURE 1. Arthrocereus grandiflorus D.R. Gonzaga & Menini Neto. A in A giant among the giants: Arthrocereus grandiflorus (Cactaceae, Cactoideae), a new species from the Brazilian Cerrado

FIGURE 1. Arthrocereus grandiflorus D.R. Gonzaga & Menini Neto. A. Habit; B. Branch detail; C. Branch in cross-section, detail of the number of ribs; D–E. Floral buds: lateral view; F. Floral bud in pre-anthesis; G. Flower: lateral view; H. Flower: front view; I. filaments in two externally visible series; J. Dry flower; K. Pubescent pericarp; L. Fruit. Photos by D.R. Gonzaga (A-K) and G. Olsthoorn (L).