1. Botrytis is ubiquitous (e.g., found everywhere) and prefers to attack senescing or injured plant tissue

2. Auxins delays onset of leaf abscission • Auxins level high inn young leaves and low in senescing leaves when abscission started • Auxin is transported from leaf blade normally prevent abscissions 67

3. Further, I have observed—in apparent explanation of its seed set—that the senescing epipetalous corollas bend down, Absciss and slide down their pistils dragging their anthers over the stigma lobes potentially resulting in self-pollination which Dole (1990, 1992) described as dragging in his studies of contrasting Mimulus guttatus.