Tolmatchew was an expert in the family Juncaceae, and the West Siberian species " Luzula tolmatchewii " ( now called " Luzula nivalis " ) " " was named after him by Russian Arctic and subarctic botanist Vladimir Borisovich Kuvaev . He was also an expert in some areas of the Brassicaceae or mustard family, the Caryophyllaceae or carnation family, the Papaveraceae or poppy family and the Ranunculaceae or buttercup family.
