PLATE 4

A, B. Successive transverse sections through distal portion of flower: A, distal to the stigmatic cup, x4.7; B, at a slightly higher level than A, x4.7; (s) sepals, (p) petals, (st) stamens, (os) outer staminodia, (o) orthostichies, (cp) contact parastichies, (FA) floral apex.