On a broad-leaved form of the seagrass Posidonia oceanica (Posidoniaceae) from Algiers (Algeria)

The discovery in the Algiers (Algeria) region of a population of Posidonia showing distinct individualisation with reference to the classic description of the species Posidonia oceanica (L.) Delile would appear to confirm that this species, endemic to the Mediterranean, is less homogeneous than had...

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Bibliographic Details
Published in:Aquatic botany 1992, Vol.43 (2), p.181-198
Main Authors: Semroud, Rachid, Verlaque, Régine, Crouzet, Alain, Boudouresque, Charles F.
Format: Article
Language:English
Subjects:
Biological and medical sciences
Fundamental and applied biological sciences. Psychology
Marine
Plant cytology, morphology, systematics, chorology and evolution
Posidonia oceanica
Spermatophyta
Systematics (diagnosis, chromosome numbers)
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Summary:The discovery in the Algiers (Algeria) region of a population of Posidonia showing distinct individualisation with reference to the classic description of the species Posidonia oceanica (L.) Delile would appear to confirm that this species, endemic to the Mediterranean, is less homogeneous than had previously been thought. The Algerian population at La Marsa differs from the typical taxon (based on observations on the French coasts) in leaf breadth, its greater number of longitudinal vascular bundles, its distinctive karyotype and certain specific anatomical features. It would, however, be premature at this stage to come to any definite conclusions with regard to its systematic position and rank.
ISSN:0304-3770
1879-1522
DOI:10.1016/0304-3770(92)90042-H