Abstract. DELFORGE, P., VRARD, D. & MAST DE MAEGHT, J.- Section Orchids of Europe - Report of activities 2009-2010 [Natural. belges 92 (Orchid. 24): 1-13].

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, France, Germany, Greece; biogeography, taxonomy.