Home – Home – Jornals – Flora and Vegetation of Asian Russia 2023 number 1

The article presents the results of morphological studies of anthers, as well as live and dehydrated pollen grains of 9 species of the genus Tulipa L. from 4 sections. In the living state, the grains are spherical or elongated-ellipsoidal in shape, ranging in size from 40 to 78 mm. For a spherical shape, the type of aperture is characteristic - a pore, and for an ellipsoid - a colpi. Based on the determination of the place of germination of the pollen tube, which is located only on the distal side and is pore in the species of the sections Leiostemones, Spiranthera, Orithia and a furrow in the species of the section Eriostemnes, it was found that the pollen in the studied species is distal-1-aperture. Aperture without operculum (Leiostemones) or with it (Spiranthera, Eriostemnes, Orithia). The palynomorphological features correspond to the sections of the genus according to the classification of A.I. Vvedensky with additions by Z.P. Bochantseva. The data obtained do not confirm the expediency of including the section Spiranthera.