Thanks Natassja, most of these work really well. The leaf venation you are showing is pinnate venation, not palmate venation. Trollius L. (the orange flower) in the Ranunculaceae has longitudinal stamen dehiscence, which is the most typical dehiscence of most flowering plants. I am not sure what plant you photographed for diadelphous stamens. Maybe the developing fruits of lilac? Those plants only have two stamens, so these are not diadelphous. Most of these other ones are good examples. The white ‘modified leaves’ of the bunch berry (Cornus canadensis L.), are the bracts that subtend the flowers of bunch berry. The small individual flowers in the center of the inflorescence are actinomorphic. See below for some of the parts of these inflorescences and flowers labelled.
Thanks Natassja, most of these work really well. The leaf venation you are showing is pinnate venation, not palmate venation. Trollius L. (the orange flower) in the Ranunculaceae has longitudinal stamen dehiscence, which is the most typical dehiscence of most flowering plants. I am not sure what plant you photographed for diadelphous stamens. Maybe the developing fruits of lilac? Those plants only have two stamens, so these are not diadelphous. Most of these other ones are good examples. The white ‘modified leaves’ of the bunch berry (Cornus canadensis L.), are the bracts that subtend the flowers of bunch berry. The small individual flowers in the center of the inflorescence are actinomorphic. See below for some of the parts of these inflorescences and flowers labelled.