Calyx 4–5-cleft, valvate in the bud; petals involute. [Rhamnaceæ], [111]
C. Stamens not more than twice as many as the petals, when of just the number of the petals then alternate with them.
1. Calyx free from the ovary, i.e. the ovary wholly superior.
[*] Ovaries 2 or more, separate.
Stamens united with each other and with a large and thick stigma common to the two ovaries. [Asclepiadaceæ], [338]
Stamens unconnected, on the receptacle, free from the calyx.
Leaves punctate with pellucid dots. [Rutaceæ], [106]
Tree, with pinnate leaves. [Ailanthus], in Simarubaceæ, [107]
Low shrub, with pinnate leaves. [Xanthorrhiza], in [Ranunculaceæ], [48]