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  1. PHYLOGENETIC IMPLICATIONS OF LEAF ANATOMY IN SUBTRIBE MELITTIDINAE (LABIATAE) AND RELATED TAXA
    By: Abu-Asab, Mones S - Cantino, Philip D
    Type: Article
    In: Journal of The Arnold Arboretum
    Volume: 68
    Date: 1987
    Page Range: 1--34
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  2. Systematic Implications of Pollen Morphology in Subfamilies Lamioideae and Pogostemonoideae (Labiatae)
    By: Abu-Asab, Mones S - Cantino, Philip D
    Type: Article
    In: Annals of the Missouri Botanical Garden
    Volume: 81
    Date: 1994
    Page Range: 653--686
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