Morphology and Development of the Flowers of Boottia cordata, Ottelia alismoides, and Their Synthetic Hybrid (Hydrocharitaceae)

Robert B. Kaul
1969 American Journal of Botany  
The inferior ovary of Boottia cordata, Ottelia alismoides, and their hybrid is appendicular in nature, the carpels are congenitally only slightly connate, and they are unsealed. All floral organs except the sepals originate from common primordia in the female and bisexual flowers. A flat residual floral apex is present. There is a vestigial superior ovary of three ontogeneticallv fused carpels in the male flower of Boottia cordata. The hybrid is intermediate in many characteristics and has
more » ... istics and has partially fertile stamens and staminodia. The sequence of development in all flowers is acropetal. These plants appear to be related to the Butomaceae and they show evolutionary tendencies parallel to those in the Nymphaeaceae.
doi:10.2307/2440637 fatcat:kt2ln4e4xbfahcymulxfljhdb4