Komarov Botanical Institute of Russian Academy of Science - Palynological Database and Orchids
of North-West Russia start page
База данных "Морфология пыльцы и спор современных и ископаемых растений"
POLlen dataBAse ("Morphology of pollen and spores of recent and extinct plants")
Орхидеи
Северо-Запада России
Orchids
of North-West Russia