The elements of botany for The elements of botany for beginners and for schools elementsofbotany00gray Year: 1887 92 FLOWERS. [SECTION 8. The Standard or Banner (JTexilluni), the large upper petal which is external in the bud and wrapped urouud the others. The Wings {Aloe), the pair of side petals, of quite different shape from the standard. The Keel {Carina), the two lower and usually smallest petals ; these are lightly coalescent into a body which bears some likeness, not to the keel, but to the prow of a boat; and this encloses the stamens and pistil. A Pea-blossom is a typical example; th
The elements of botany for The elements of botany for beginners and for schools elementsofbotany00gray Year: 1887 92 FLOWERS. [SECTION 8. The Standard or Banner (JTexilluni), the large upper petal which is external in the bud and wrapped urouud the others. The Wings {Aloe), the pair of side petals, of quite different shape from the standard. The Keel {Carina), the two lower and usually smallest petals ; these are lightly coalescent into a body which bears some likeness, not to the keel, but to the prow of a boat; and this encloses the stamens and pistil. A Pea-blossom is a typical example; the present illustration is from a species of Locust, Robinia hispida. 265. Labiate Corolla (Fig. 256-258), which would more properly have been called Bilabiate, that is, two-lipped. This is a common form of gamopetalous co- rolla ; and the calyx is often bilabiate also. These flowers are all on the plan of five; and the irregularity in the corolla is owing to unequal union of the petals as well as to diversity of form. The two petals of the upper or posterior side of the flower unite with each other higher up than with the lateral petals (in Fig. 256, quite to the top), forming the Upper lip: the lateral and the lower similarly unite to form the Lower lip. The single notch which is generally found at the summit of the upper lip, and the two notches of the lower lip, or in other words the two lobes of the upper and the three of the lower lip, reveal the real composition. So also does the alternation of these five parts with those of the calyx outside. When the calyx is also bilabiate, as in the Sage, this alternation gives three lobes or sepals to the upper and two to the lower lip. Two forms of the labiate corolla have been desig- nated, viz.:— Ringent or Gaping, when the orifice is wide open, as in Fig. 256. Personate or Masked, when a protube- rance or intrusion of the base of the lower lip (called a Palate) projects over or closes the orifice, as in Snapdragon and Toad-Flax
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