Biomorphological features and ontogenesis Lathyrus niger in connection with protection questions

On example Lathyrus niger (L.) Bernh. the approach used by authors at studying of rare species of vascular plants, brought in regional Red books is described. At the analysis of protected kinds reveal chronological, ekologo-fitotsenoticheskie and populjatsionno-ontogeneticheskie features in natural habitats and in the conditions of culture. The range of vital forms L. niger is found, features of passage of stages onthogenesis on east suburb of a city of Ryazan and in the conditions of Biological research station RSU are tracked, diagnoses of age conditions are specified, parameters of ecological valency of a kind are defined. The narrow ecological amplitude in relation to soil humidifying is defined by specificity of renewal of a kind. Restrictions on a salt mode of soil and light exposure level are connected with low competitiveness of plants virgil the period. L. niger is heliophyt that is caused by late terms of flowering. Vital strategy is patient.