Abstract. Delforge, P., Mast de Maeght, J., Parvais, C. & Walravens, .- Section Orchids of Europe - Report of activities 2004-2005 [Natural. belges 87 (Orchid. 19) (2006): 1-15]. The winter program comprised illustrated talks on a wide variety of topics: distribution, systematics, identification, hybrids, ecology, protection, as well as discussions on techniques and other aspects of orchid study. Summer field trips and significant observations are reported.

Key-Words: Orchidaceae; flora of Belgium, Borneo, Canada (Qubec), Crete, Croatia, France, Greece, Italy, Malaysia, Spain, Thailand, Turkey; biogeography, molecular systematics.