Abstract. P. Delforge.- Note on two Epipactis of the Brussels Region. A spontaneous and very late Epipactis helleborine is observed flowering in a garden of Brussels suburbs on october 1994. Consequences of that observation on the delimitation of taxa in the genus are discussed. The same year, 3 clearly hybrid plants between E. helleborine and E. phyllanthes var. degenera have flowered in the forest of Soignes; they are described as E. ×bruxellensis.

Key-Words: Flora of Belgium, Brussels Region, Orchidaceae, Epipactis helleborine, E. helleborine × E. phyllanthes var. degenera, Epipactis ×bruxellensis nothosp. nat. nov.