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CYTOTAXONOMIC STUDIES IN THE GENUS SYMPHYTUM. II
Author(s) -
Gadella Th. W. J.,
Kliphuis E.
Publication year - 1969
Publication title -
acta botanica neerlandica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.871
H-Index - 87
eISSN - 1438-8677
pISSN - 0044-5983
DOI - 10.1111/j.1438-8677.1969.tb00594.x
Subject(s) - biology , genus , botany , zoology
SUMMARY Crossing experiments were carried out between the three cytotypes (2n = 24, 2n = 40 and 2n = 48) of Symphytum officinale and that of Symphytum asperum (2n = 32). The results indicate that morphologically closely related types are sometimes crossable, whereas in other cases no hybrids could be produced. On the other hand morphologically very distinct types could be crossed with great ease. The significance of these studies for the elucidation of taxonomic problems is discussed.