phenology

Morphobiology and assessment of the introduction possibilities of Leonurus cardiaca L.

Authors: Pikalova E. V., Kukhlevskaya Y. F.

The data on the study of morphometric parameters of one of the most valuable medicinal plants – Leonurus cardiaca L., growing in the collection site of medicinal plants of the Botanical garden of the OSU are presented. The parameters of samples, obtained from the cities of Samara and Kazan were compared . All the studied plants have passed the full cycle of their development with the formation of viable seeds. It is established, that the studied species adapts well to new growing conditions, while the morphometric parameters vary within the middle – very high levels of variability.

Aspects’ Change of Vegetation in Khvalynsky National Park and its Preservation Zone

Authors: Boldyrev V. A., Suleymanova G. F.

In article features of aspects’ change of National park’s Khvalynsky (Saratov region) vegetable communities are revealed by V. V. Alyokhin’s method of sequential descriptions. Five vegetable associations: 1) Stipeta pennatae –Bromopsisosa riparia – Pluriherbosa, 2) Stipeta capillatae – Festucosa valessiaca – Herbosa; 3) Stipeta pennatae – Festucosa valessiaca – Herbosa on sand; 4) Acer platanoides + Tilia cordata – Convallaria majalis; 5) Acer platanoides + Tilia cordata – Aegopodium podagraria are observed. In total 17 types of plants on blossoming rhythms are revealed.