. The classification of flowering plants. Plants. 356 FLOWERIXG PLANTS Cercis (fig. 177) it resembles a papilionaceous corolla, the two lower (anterior) petals forming a larger pair enclosing the essential organs, while the posterior pair are reflexed and wing-hke, and the odd petal is erect. In Cassia (fig. 178) all five are subequal and spreading. In the handsome flower of Amherstia nobilis (a plant of further India, not uncommon in cultivation) the anterior pair are small or suppressed, while the three posterior are well-developed, the odd petal being the largest. In Krameria the anterior p
. The classification of flowering plants. Plants. 356 FLOWERIXG PLANTS Cercis (fig. 177) it resembles a papilionaceous corolla, the two lower (anterior) petals forming a larger pair enclosing the essential organs, while the posterior pair are reflexed and wing-hke, and the odd petal is erect. In Cassia (fig. 178) all five are subequal and spreading. In the handsome flower of Amherstia nobilis (a plant of further India, not uncommon in cultivation) the anterior pair are small or suppressed, while the three posterior are well-developed, the odd petal being the largest. In Krameria the anterior pair are represented by glandular scales, while in Tamarindus (fig. 179, B) they are absent. Finally apetalous genera (or species) occur, as in Copaifera and Ceratonia (fig. 179, C, D). The stamens are generally ten in number, rarel}' indefinite, or fewer by abortion. Fig. 177. Cercis Siliquastrum. A. Inflorescence gro^ving from the old wood, reduced. B. A flower. C. Flower in longitudinal section, enlarged. (After Taubert.) (figs. 178, 179). They are free, as in Cercis, or more or less united ; thus in Amherstia they are diadelphous, the posterior one free, the rest united for more than half their length; and in Tamarindus the three fertile stamens are similarly united into an open sheath on the top of which are indicated the small staminodes. The third and largest subfamily, Papilionatae. is character- ised by the markedly zygomorphic true papilionaceous flower. The five sepals are as a rule coherent, \\ith an ascending imbricate arrangement (fig. 181. A); often the two upper and three lower segments are respectively united, forming a two- lipped structure. The corolla consists typically of five unequal petals ^\iih. a descending imbricate aestivation; the outer- most (posterior) petal is the largest and forms the broad free. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectplants, bookyear1904
