Fig. 3

Scanning electron micrographs of floral development of Bocconia frutescens. a Developing inflorescence. b, c Detail of the apex of the inflorescence; note the larger terminal flower with respect to the two lateral flowers. d Initiation of the sepals. e, f Initiation of the two homeotic stamens (*₁). h Initiation of the first whorl of true stamens alternate to the sepals (1); note the two opposite common primordia ([ ]). i Initiation of the second (inner) set of true stamens of the first whorl, developed from common primordial. j–m Initiation of the third set of true stamens belonging to the second whorl (3) and the ovule. n, o Late development of stamens and gynoecium; note the conspicuous stigmatic tissue, the horse-shoe-shaped valve on each carpel and the gynophore (arrow); C carpel, O ovule, S sepal, * homeotic stamens; 1, first whorl of true stamens; 2, second set of true stamens belonging to the first whorl; 3, third set of true stamens belonging to the second whorl. Bars a–d, h, j–o = 50 µm; e–g, i = 10 µm