Über das Verhalten des Blattgrundes an blütennahen Laubblättern der Gattungen Ranzmculus und Adonis Ranunculus bulbosus, Knolliger Hahnenfuß

Abstract:

On the behaviour of the leaf base of leaves in the vicinity to the blossoms of the genera Ranzmculus and Adonis

In the family Ranunculaceae we sometimes find transitional forms between the usually distinct leaf organs. The last leaves before the inflorescences in the leaf successions of Ranunculus acris (meadow buttercup), Ranzmculus awicomus (goldilocks buttercup) and Adonis (pheasant’s eye) show morphological formations which have not been described hitherto: they comprise small pinnules originating from the veins at the leaf base before the vessels merge into a ring in the petiole. We think that these pinnules form the transition to the sepals from the leaves adjacent to the inflorescence.