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 Lyciaeae:Lycium, Grabowskia, andPhrodus. Data obtained are mostly new since no comprehensive 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 inPhrodus andGrabowskia. Results are discussed and compared with previous reports for the family, older than the exclusively AmericanPhrodus andGrabowskia. 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 ofLycium is provided.

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