Fig. 4.

The five floral types (‘small’, ‘large’, ‘medium-sized’ and ‘vertical’ flowers) represented by Marantochloa congensis (A), Hypselodelphys hirsuta (B, F), Megaphrynium macrostachyum (C), Haumania danckelmanniana (D, G) and Thaumatococcus daniellii (E). (A–E) Side view in natural orientation in the inflorescence (E, flower pair); (F, G) frontal view. c, Unit composed of the style enveloped by the hooded staminode and the petaloid appendage of the fertile theca; fs, fleshy staminode; os, outer staminode; pa, petaloid appendage of fertile theca; st, style; ta, trigger appendage of the hooded staminode; grey, organs of inner androecial whorl. Scale bar = 1 cm.