[Occurrence in France of some pathogen fungi on flowering plants [Ascochyta dianthi in sweet william (Dianthus barbatus), Embellisia hyacinthi in hyacinth (Hyacinthus orientalis), Myrothecium roridum in Platycerium alcicorne, Phytophthora cryptogea and Phytophthora syringae in chrysanthemum, Puccinia lagenophorae in cineraria (Senecio cruentus) and daisy (Bellis perennis), Sclerotium denigrans in lily-of-the valley (Convallaria majalis); prophylaxis, fungicides]]. [French]