THE GENUS
SORBUS IN COLLECTION OF PETER THE GREAT BOTANICAL GARDEN AT SAINT-PETERSBURG
G.A. Firsov, N.P. Vasiljev
Komarov Botanical Institute RAS, 197376, Saint-Petersburg, 2 Prof. Popov str
gennady_fi rsov@mail.ru
Keywords: Sorbus, рябина, интродукция растений, биологические особенности, Ботанический сад Петра Великого, Sorbus, rowan, arboriculture, biological peculiarities, Peter the Great Botanical Garden
Abstract
Th e native Sorbus aucuparia was the first species of this genus being cultivated at Peter the Great Botanical Garden (Saint-Petersburg, Russia) - uninterruptedly since 1736. There are 104 specimens in modern collection (trees and very seldom shrubs) which belong to 44 taxa. The largest specimens reach 20 m high ( S. aucuparia ) and 55 cm in trunk diameter ( S. intermedia ). The oldest trees ( S. aucuparia , S. hybrida , S. intermedia , S. × latifolia , S. torminalis ) are 75-85 years old. The majority of specimens have been grown from seeds, only few ones being graft ed. Th e most part of species produce fruits and are grown from local seeds. The species from East Asia dominate, followed by species of European origin. The most prominent reserves of further introduction are in flora of China.
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