Open AccessBiological features and population dynamics of Steveniella satyrioides (Orchidaceae Juss.) in the Sochi Black Sea Region
Author(s) -
E. A. Averyanova
Publication year - 2020
Publication title -
problemy botaniki ûžnoj sibiri i mongolii
Language(s) - English
Resource type - Journals
eISSN - 2686-9268
pISSN - 2313-3929
DOI - 10.14258/pbssm.2020004
Subject(s) - beech , orchidaceae , population , biology , hornbeam , black sea , botany , geography , ecology , forestry , demography , geology , oceanography , sociology
Steveniella satyrioides (Steven) Schlechter is widely distributed in Sochi Black Sea region. It is found inthe high-trunk beech-hornbeam forests of the lower mountain zone. The period of vegetation lasts up to 7–8 months. Thevariations of the ontogenetic spectra of numerous population have been studied. Morphometric data vary slightly. Thepercentage of fruit setting was about 67 %, the number of seeds in one fruit is 9215.40 ± 75.92 (min 5329, max 12928),one individual can produce 67620 full seeds. Orchis-type seeds, sized 629.6 ± 11.0 × 173.4 ± 2.8 um.