Morphology and vascular anatomy of the flower in Sansevieria hyacinthoides (L.) Druce (Asparagaceae Juss.)

O. Fishchuk1, . Odintsova2

1 Lesya Ukrainka Eastern Europer National University
13, Voli Ave., Lutsk 43025, Ukraine
2Ivan Franko National University of Lviv
4, Hrushevskyi St., Lviv 79005, Ukraine

It was showed, that perianthium members of Sansevieria hyacinthoides flower are connated up to the 2/3 of their height, each tepal and stamen traces have one bundle. In the gynoecium of Sansevieria hyacinthoides the synascidiate, hemisynascidiate, hemisymplicate and asymplicate zones are presented. The fertile hemisynascidiate zone is the highest in the ovary, the synascidiate one is the shortest, as it was previously showed for S. suffruticosa. Carpel trace has three bundles, ovule trace has one bundle. The height of the septal nectary is twice as locule height due to its prolongation into the thickened ovary base and roof. Septal nectary corresponds to the inner type at its base and to the outer type at its upper part. Besides, there is no epidermal connection between septal nectaries at its base.

Keywords: Sansevieria hyacinthoides, flower morphology, vascular anatomy, hemisyncarpous gynoecium, septal nectaries

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