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Comparative Floral Morphology in Lycieae (Solanaceae)

Luis M. Bernardello
Brittonia
Vol. 39, No. 1 (Jan. - Mar., 1987), pp. 112-129
Published by: Springer on behalf of the New York Botanical Garden Press
Stable URL: http://www.jstor.org/stable/2806983
Page Count: 18
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Comparative Floral Morphology in Lycieae (Solanaceae)
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Abstract

Comparative organography (excepting carpels studied previously) and anatomy of the flower are reported for some American members of the genera of Lycieae: Lycium, Grabowskia, and Phrodus. Data obtained are mostly new since no comprehensiva floral anatomical work has been carried out in the tribe. These results include the first report of extrafloral nectaries on the inner epidermis of the calyx in Phrodus and Grabowskia. Results are discussed and compared with previous reports for the family, and putative phylogenetic lines are drawn. The cosmopolitan genus Lycium is older than the exclusively American Phrodus and Grabowskia. Lycium shows great morphological diversity while the other two genera are less variable but have more specialized features. A key, based on floral characters, to the genera of Lycieae and sections of Lycium is provided.

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