SPECIAL DEVELOPMENT AND CONDITION OF THE SCUTELLARIA SIEVERSII (LAMIACEAE) COENOPOPULATIONS IN CHU-ILYISK MOUNTAINS (MEDIUM ASIA)
A.A. Guseva, V.A. Cheryomushkina
Central Siberian Botanical Garden, SB RAS, 630090, Novosibirsk, Zolotodolinskaya str., 101
guseva.sc@list.ru
Keywords: Scutellaria sieversii, жизненная форма, онтоморфогенез, фаза морфогенеза, ценопопуляция, Scutellaria sieversii, life form, ontomorphogenesis, morphogenesis phase, coenopopulation
Abstract
The life form of Scutellaria sieversii in the conditions of the desert Chu-Ilyisk mountains was studied. Individuals develop as monocentric dwarf subshrubs. The structure of adult individuals is represented by plagiotropic, non-rooting composite bough axis, consisting of parts of system shoot formation. During development the individuals pass the following phases of morphogenesis: primal shoot (p-j) - primal bush (im-ss). Ontogenesis is simple, incomplete, characterized by rapid development in the pregenerative period, the longest life expectancy in the mature generative state, and rapid extinction in the postgenerative period, which leads to the absence of the senile state. The study of the ontogenetic structure of S. sieversii coenopopulation showed that self-regenerate of the population occurs only by seed. A centered type of spectrum is formed on the stony deserted slopes, which is determined by the peculiarities of the development of the species and the degree of mobility of the substrate.
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