Collection and Exchange of Seeds
Collection of woody plants
About 1600 taxa belonging to 181 genus and 61 families are located on the territory of three dendrological gardens, in the park, at the introduction nursery and other collection sites. Taxa of different origin are duplicated.
There are more than 50 thousand specimens of woody plants, 215 species and 26 taxa of subspecies rank from 29 families, 69 genera in the park. The territory of the park is located in the streets of Novorossiyskaya, Karbysheva, B.Sampsonievsky prospect, and a railway embankment along Perviy Murinsky prospect. There are 2 parts of the park within its boundaries: the western and the eastern ones, which are separated by the Institutsky Lane. The area of the park, excluding the area of dendrological gardens and the zone of responsibility of the economic service, is about 40 hectares. The territory is open, suffering from large anthropogenic load.
The collection of woody plants numbers1119 taxa (927 species and 192 taxa of subspecies rank), belonging to 51 families and 142 genera. The collection is most widely represented in the Upper Dendrological garden: 899 taxa (139 genera and 50 families), which makes up 80% of the total collection fund. Woody plants of the Red Books of Russia, Leningrad region, Karelia are represented in the collection by 31 species, belonging to 23 genera and 18 families.
The area of the nursery is 0,63 hectares. It is here that the primary tests of species and forms of woody plants which are new for the Northwest Region are carried out in order to study their decorative properties and economic value. The main task is the introduction of woody plants in order to preserve and improve the collection. 2023 samples of woody plants are being tested, which are the representatives of 64 families, 191 genera, 1019 species, 306 varieties, forms, sorts.
Collection of open soil ornamental herbaceous plants
Currently, there are about 3000 taxa belonging to 435 genera and 100 families, being grown on collection sites and open-air flower beds, and some grow naturally in the park and dendrosades. The flora of wild plants is 227 species, belonging to 153 genera, 44 families (Ignatieva, 1994). Of undoubted interest are specialized collections. Collections of generic complexes: astilba, lilies, daylilies, irises, phloxes, roses, clematis, chrysanthemums. Collection of plants for shady areas. A group of tall plants. Plants of Siberia, the Caucasus, the Far East, Karelia. Work is underway to create exposition sites.
Collection of tropical and subtropical plants
The collection consists of 1,176 taxa (903 species and 273 taxa of subspecies rank) from 135 families and 403 genera. In the collection there are 11 families of higher spore plants represented by ferns and 10 families of gymnosperms. The most widely represented are the department of Magnoliphyta, Magnolipsida class of 81 families, 232 genera, 679 taxa. Liliopsida class includes 32 families, 129 genera, 407 taxa. A significant place in the collection is occupied by the plants of the arid regions of the globe: the Crassulaceae family which includes 24 genera and 187 taxa, Cactaceae (27 and 82), Agavaceae (7 and 34), Aizoaceae (11 and 24). The most complete families are: Araceae (17 and 59), Bromeliaceae (16 and 42), Arecacea (12 and 27), Commelinaceae (10 and 35).
COLLECTION AND EXCHANGE OF SEEDS
One of the main tasks of the Botanical Garden is collecting and exchange of seeds, the publication of the exchange catalogue of seeds “INDEX SEMENIUM”. For the first time the list of seeds offered for the exchange by the dendrological garden of the Forest Institute was published by V.N. Sukachev, E.L. Wolff, G. Anufriev and A. Shennikov in 1928. It included 173 species and forms of woody plants. The modern catalogue of seeds offered for exchange includes more than 700 types of woody and herbaceous plants. From systematic point of view, the delectus includes species belonging to 80 families. The largest number of species is represented by the following families: o Rosaceae — 97, o Caprifoliaceae — 49, o Asteraceae — 27, o Pinaceae ‑20, o Oleaceae — 19.
Currently, 418 botanical institutions are listed in the database of botanical gardens. Regular exchange of delecta, applications and seeds is carried out with 197 botanical gardens. The geography of the exchange is extensive — 43 countries located on 4 continents. The most intensive exchange is carried out with the botanical gardens of Germany, the USA, Italy, France, the Czech Republic. The interest of foreign and domestic botanical institutions in the exchange of seeds with the Botanical Garden of the Forest Technical University does not decline.
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