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This strongly-supported clade contains only two species, namely the annual C. ramosissima and the
perennial C. hawkinsiana, recently included in the newly-described section Decumbens (Cano-Maqueda & Talavera 2011). Based on ITS sequence data, Cano-Maqueda and Talavera (2011) inferred a moderately-supported “Decumbens” clade showing sister relationships between the respective species pairs C. decumbens–C. dieckii (not included in the present study, both species treated as synonyms by Lammers [2007]) and C. ramosissima–C. hawkinsiana. Morphologically, the four species share a similar general habit along with a glabrous style surmounted by three erect stigmas, an unusual character for Campanula (Cano-Maqueda & Talavera 2011). Caryologically, the group remains rather variable with respective somatic chromosome numbers of 2 n = 20 (C. ramosissima), 22 (C. hawkinsiana), 28 (C. dieckii), and 32 (C. decumbens) (Cano-Maqueda & Talavera 2011, Contandriopolous 1964, Podlech & Damboldt, 1964). If confirmed by further molecular data, this clade would exemplify a new case of a lineage with current W-E disjunct distribution, with a C. decumbens–C. dieckii clade of annuals, endemic to the Iberian Peninsula, and a C. ramosissima–C. hawkinsiana clade occurring in the Eastern Mediterranean region.

From: Mansion & al. (2012: 17)


Cano-Maqueda J. & Talavera S. 2011: A taxonomic revision of the Campanula lusitanica complex (Campanulaceae) in the Western Mediterranean region. – An. Jard. Bot. Madr. 68: 14–47

Contandriopolous J. 1964: Contribution à l’étude caryologique des Campanulacées de Grèce. – Bull. Soc. Bot. Fr. 111: 222–235.

Lammers, T. G. 2007: World checklist and bibliography of Campanulaceae. – Kew: Royal Botanic Gardens, 675p. ISBN 9781842461860

Mansion G., Parolly G., Crowl A.A., Mavrodiev E., Cellinese N., Oanesian M., Fraunhofer K., Kamari G., Phitos D., Haberle R., Akaydin G., Ikinci N., Raus T. & Borsch T. 2012: How to Handle Speciose Clades? Mass Taxon-Sampling as a Strategy towards Illuminating the Natural History of Campanula (Campanuloideae). – PLoS ONE 7 (11).

Podlech D. & Damboldt J. 1964: Zytotaxonomische Beiträge zur Kenntnis der Campanulaceen in Europa. – Ber. Deutsch. Bot. Ges. 7: 360–369.