Comparative study of "Asplenium balearicum", "A.onopteris" and their spontaneous hybrid "A. x tyrrhenicum"
- Cubas Domínguez, Paloma
- Rosselló Picornell, Josep A.
- Pangua Fernández-Valdés, Emilia
ISSN: 0211-1322
Year of publication: 1988
Volume: 45
Issue: 1
Pages: 75-92
Type: Article
More publications in: Anales del Jardín Botánico de Madrid
Abstract
Asplenium balearicum is an endemic species of the western islands of the Mediterranean Sea, being most abundant in Minorca (Balearte Islands, Spain). Despite new data from Minorca indicating a strong variability in morphology and size of the fronds, all the plants studied are tetraploid with regular meiosis, displaying a well defined phenolic pattern and a characteristic spore morphology. The morphology, cytology and phenolic pattern of the spontaneous hybrid A. x tyrrhenicum strongly support the origin of this taxon as the result of a backeross betweenA balearicum and A. onopteris.