Mazei Natalya Grigorievna, Candidate of biological sciences, associate professor, sub-department of botany, plant physiology and biochemistry, Penza State University (40 Krasnaya street, Penza, Russia), email@example.com
Mozhaeva Galina Fedorovna, Biologist, I. I. Sprygin Penza Botanical Garden, Penza State University (2a K.Marks street, Penza, Russia), firstname.lastname@example.org
Rytikova Olga Vladimirovna, Biologist, I. I. Sprygin Penza Botanical Garden, Penza State University (2a K.Marks street, Penza, Russia), email@example.com
Vyal Yulia Alexandrovna, Candidate of biological sciences, associate professor, sub-department of botany, plant physiology and biochemistry, Penza State University (40 Krasnaya street, Penza, Russia), firstname.lastname@example.org
Rostovtseva Marina Vladimirovna, Director, I. I. Sprygin Penza Botanical Garden, Penza State University
(2a K. Marks street, Penza, Russia), email@example.com
Background. Botanical gardens play a significant role in preservation of plants’ biodiversity, since the introduction of rare and endangered species into the culture in collections of the gardens represent an additional way to preserve the gene pool of rare plants and provide further opportunities for reintroduction and repatriation. According to the second edition of the Red Book of the Penza region the list of rare and endangered plant species in the region includes 200 taxa of vascular plants. In the plant collection of I.I.Sprygin Penza Botanical garden (altogether consisting of two thousand taxa) 38 species are rare and should be protected in the local regional flora. The article presents the characteristics of all these species.
Results. Out of 38 species of rare plants presented in the collection of the Botanical Garden, 16 are rated as highly stable in culture, undergo a complete cycle of development, bloom and bear fruits; 15 species are tied, but not always ripen; 7 species are in vegetative state – individual plants bloom but not fruit.
Conclusions. Establishment and maintenance of the collection of living plants of protected species of Penza region flora in the I. I. Sprygin Penza Botanical Garden of Penza State University provides practical implementation of one of the major environmental problems for botanical gardens, namely, preservation of rare plants. Purposeful cultivation of these species in the culture helps to create reserve funds of plants with prospects of further reintroduction into natural habitats, and it is thus the most reliable way to maintain ex situ. Furthermore, the introduction into the culture of rare species having economic importance and in this connection especially suffering from extermination (edible, medicinal, ornamental plants), will significantly reduce human impact on their natural populations and effectively preserve these species in native ecosystems.
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