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Webbia
Journal of Plant Taxonomy and Geography
Volume 36, 1983 - Issue 2
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Original Articles

Commentaria pteridologica. IV. De «Asplenio balearico» Shivas in Italia reperto

Pages 217-223 | Accepted 24 Mar 1983, Published online: 14 Apr 2013
 

Riassunto

Asplenium balearicum Shivas, specie anfidiploide derivata dall′incrocio tra A. obovatum Viv. e A. onopteris L., viene segnalata per la prima volta per l′Italia. Di essa vengono forniti gli elementi conoscitivi essenziali: descrizione e iconografia sulla base dei campioni italiani, numero cromosomico (n = 72), distribuzione (Isole di Pantelleria e di Palmarola). Inoltre viene riportato come nuovo per la flora italiana (I. di Pantelleria) A. × bouharmontii Badré et Prelli, ibrido naturale A. obovatmn × onopteris da cui si suppone aver origine A. balearicum.

Asplenium balearicum Shivas, an amphidiploid species originating from hybridization between A. obovatum Viv. and A. onopteris L., is recorded for Italy for the first time.

Description and illustration on the basis of the Italian collections, chromosome number (n = 72) and distribution (Pantelleria, SW of Sicily, and Palmarola in the Ponziane Is.) are given for this species. A. × bouharmontii Badré et Prelli, the natural hybrid A. obovatum × onopteris from which A. balearicum is supposed to arise directly by chromosome doubling, is also recorded as new to the Italian flora (Pantelleria).

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