Between 1912 and 1921 he worked at the Botanical Institute of Cotroceni and in 1918 he was appointed lecturer in the Department of Plant Morphology and Institute of Systematic Botany in Bucharest. For a quarter of a century, he divided his work between the College of Agriculture at Herăstrău Park, where he taught Systematics and Phytopathology, and the Plant and the Agricultural Research Institute of Romania, founded by Gheorghe Ionescu-Sisești.
