California’s endemic Cornus sessilis in Ukraine

Global climate change and increased land use lead to the loss of biodiversity at all levels organization living organisms – ecosystems, species, landscape population, genetic, molecular biological levels, etc. The reaction plants anthropogenic impact, according experts, may be even stronger than postglacial changes. A shift in thermal isotherm will cause either move adapt, or disappear. Endemic species that make up “biodiversity hotspots” require special attention. Cornus sessilis Torr. ex Durand, object our research, is part one these points California Floristic Province. Researchers are now focusing their efforts on developing a related management strategy. In case threat extinction nature, there important method preserving it culture (ex situ). M. Gryshko National Botanical Garden Academy Sciences Ukraine (the NBG) pays great attention introduction rare endemic from different geographical floristic regions world. gene pool L. s. l. NBG consists more 30 40 cultivars including insufficiently researched little-known Californian C. sessilis. Europe, has been grown since 2017 only Chateau Perouse Botanic Gardens (Saint-Gilles, France) it. this article we evaluate life cycle development under conditions its natural area. To do this, used classic traditional methods research process introduction, particular, botanical plant identification, visual observation, phenology, comparative morphology biometrics. Morphological descriptors (life form, colour texture bark, leaf shape, pubescence character, structure generative vegetative buds, inflorescences, flowers, fruits endocarp) genotypes introduced identical those habitats. weight endocarps were determined by us for first time. results biometric analysis size leaves showed had larger blades, but smaller as compared wild. underwent full seasonal (from deployment buds fall, inclusive) 229 days. general, phenological strategy corresponds other str., mas Our indicate sessilis, California’s new Ukraine, adapted bear produce seeds. experience successful makes possible cultivate expand diversity food, medicinal reclamation family Cornaceae well synthetic breeding obtain with valuable economic properties. compatibility test rootstocks clarifying theoretical issues ties practical widespread reproduction required potentially compatible rootstock