Izvestiya of Saratov University.
ISSN 1816-9775 (Print)
ISSN 2541-8971 (Online)

Southern Coast of the Crimea

Features of the developmental biology of Orthosiphon aristatus (Lamiaceae) under the conditions of introduction on the Southern coast of the Crimea

The paper presents the results of the study of the biological features of Orthosiphon aristatus (Blume) Miq. (awned orthosiphon) in open ground conditions on the Southern Coast of the Crimea and in a greenhouse. Features of fl owering, structure of male and female generative structures are revealed.

Biometric Characteristics and Aerodynamic Properties of Pollen Grains of North American Pines under Conditions of the Southern Coast of the Crimea

The results of the study of biometric characteristics and aerodynamic properties of pollen of North American species: Pinus radiata D. Don, Pinus sabiniana Douglas, Pinus coulteri D. Don and autochthonous Pinus nigra subsp. pallasiana (Lamb.) Holmboe, grown on the Southern Coast of the Crimea (SCC) are presented. The differences in the size of the pollen grains and their individual parameters are revealed. The pollen of introduced species is characterized by large sizes in comparison with native species.