The vascular anatomy of the blueberry flower ovary is described in detail. Ten primary flower bundles branch off from a siphonostele in the pedicel. From these are formed the sepal, petal, stamen, dorsal carpellary, ventral carpellary, and nectary bundles. The levels recorded for the branching of certain bundles are not in agreement with previous accounts. The possible reasons for this apparent disagreement are discussed. All structures are illustrated by 11 mechanically constructed diagrams.
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