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Term Definition
Septal unit spear-shaped A septal unit shape with septal unit head triangular and the base ob-triangular such that it appears spear-shaped as seen in a cross-section of the ovary. In this type of septal unit, all sides of the septal unit head are slanted in orientation but the basal sides are usually, but not always, shorter than the apical sides. Species that have equal sides, i.e. appearing like a diamond, are also classified as spear-shaped. Spear-shaped septal unit of Gustavia grandibracteata. Photo by C. Carollo.