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2003 Student Research Conference:
16th Annual Undergraduate and 1st Annual Graduate Research Conference

Science

Comparative Pollen Morphology of the Giant Water Lily Victoria (Nymphaeaceae) 
Alexis N. Schoenekase*
Jeffrey M Osborn, Faculty Mentor(s)

The giant water lily Victoria is native to South America and includes two species, Victoria amazonica and Victoria cruziana. Both species are grown in cultivation in the United States, and these have been variously crossed to produce several hybrids. For example, the ‘Longwood’ hybrid was generated by crossing V.amazonica as the pod (ovule) parent and V. cruziana as the pollen parent. The ‘Adventure’ hybrid is the result of the reciprocal cross. Pollen grains of Victoria are interesting because they are held together in permanent tetrads. However, little is known about pollen variation within the genus. The objective of this research was to use electron microscopy to study mature pollen morphology of both species of Victoria and three hybrids, including ‘Longwood,’ ‘Adventure,’ and ‘Atlantis.’ The following characters were documented, compared, and statistically analyzed: tetrad size and shape, pollen grain size, aperture size and type, surface ornamentation, wall infrastructure, and wall thickness. 

Keywords: Victoria, water lilly, Nymphaceae, pollen, morphology, electron microscopy

Presentation Type: Poster Presentation

Session: 26-35
Location: OP Atrium
Time: 1:15 pm

* Indicates the Student Presenter

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