21. Gagea olgae Regel,

Turdy Imp. S.-Peterburgsk. Bot. Sada 3: 292 (1875).

Types: UZBEKISTAN. in Turkestania prope Samarkand, Fedschenko s.n. (syntype: LE); prope puteum Ajak in desertis inter Turkestaniam et Khiwam, Korolkow et Krause s.n (syntype: herbarium unknown).