- Bulla vexillum (Chemnitz), as seen crawling.
39, 40), the odd petal (vexillum) st is superior, FIG.
- Flower of Pea (Pisum sativum), showing a papilionaceous corolla, with one petal superior (st) called the standard (vexillum), two inferior (car) called the keel (carina), and two lateral (a) called wings (alae).
40), one of the parts, the vexillum, is often large and folded over the others, FIG.
4, The vexillum or standard, which, in place of being internal, as marked by the dotted line, becomes external.
40), in which there are five petals: - one superior (posterior), st, placed next to the axis, usually larger than the rest, called the vexillum or standard; two lateral, a, the alae or wings; two inferior (anterior), partially or completely covered by the alae, and often united slightly by their lower margins, so as to form a single keel-like piece, car, called carin g, or keel, which embraces the essential organs.