FIGURE 1. A in Refining the circumscription of a variable species: epitypification of the name Kalanchoe rotundifolia (Crassulaceae subfam. Kalanchooideae)

FIGURE 1. A. At the epitype locality of Kalanchoe rotundifolia plants are generally glaucous to dull light green. The leaves are variably nearly round to oblong-elliptic to elliptic-obovate in outline. B. The distal part of the corolla tubes and corolla lobes of K. rotundifolia are orangey red. In bud as well as post-anthesis the flowers are apically twisted. C. Post-anthesis, the corolla tubes of K. rotundifolia dry whitish grey. This was also noted by Haworth (1824a: 188) in the protologue of the name K. rotundifolia where he described the flowers, which were already spent, as "[…] Flores parvi albi […]". D. At the likely type locality of K. rotundifolia in the vicinity of Gqeberha and Kariega in South Africa's Eastern Cape province, the species occurs in the undergrowth of the largely impenetrable thickets, here with the skyline dominated by Aloe pluridens Haworth (1824b: 299). All photographs by Gideon F. Smith.