Recognition of Phragmites Au Straus Subsp. Americanus (poaceae: Arundinoideae) in North America: Evidence From Morphological and Genetic Analyses
Year: 2004
Type: article
Abstract: A new native subspecies of Phraginites australis subsp. americanus Saltonstall, P.M. Peterson & Soreng is described. The new subspecies can be separated from the introduced and Gulf Coast North Ameri-can lineages of P. australis by having caducous leaf sheaths, ligules 1.0-1.7 mm long, lower glumes 3.0-6.5 mm long, upper glumes 5.5-11.0 mm long, lemmas 8.0-13.5 mm long, and by possessing chlo-roplast DNA haplotypes of A-H, S, Z, AA. The new subspecies is clearly distinguished in a PCA analysis and when bivariate plots of the morphological features are compared. Additional work is needed to morphologically distinguish the introduced from Gulf Coast lineages. Phragmites berlandieri is lectotypified. A key and distribution maps to the three lineages are included. RESUMEN Se describe una nueva subespecie nativa Phragmites australis subsp. americanus Saltonstall, P.M. Peterson & Soreng. La nueva subespecie puede separarse de los linajes introducidos en la Gulf Coast de Norte America de P. australis por tener vainas caducas, ligulas de 1.0-1.7 mm, glumas inferiores de 3.0-6.5 mm, glumas superiores de 5.5-11.0 mm long, lemas de 8.0-13.5 mm, y por tener haplotipos del DNA plastidial A-H, S, Z, AA. La nueva subespecie queda claramente diferenciada en un analisis de
Institutions: Smithsonian Institution, Yale University
Language: English
Domain: Life Sciences
Open Access status: green
OpenAlex ID: W1941319