. Nature and development of plants. Botany. FiG. 330. Fig. 329. Flower of the morning-glory (Ipomoea), showing the tubular corolla characteristic of the Polemoniales. Fig. 330. Boraginaceae: C, inflorescence of comfrey {Symphytum). Note the coiled inflorescence; a, a feature of this family. D, section of flower, showing the deeply four-lobed ovary and the stamens cohering high on the corolla and alternating with small tongue-like scales. dated with a pronounced irregularity of the corolla in the higher families and a high degree of specialization in the construction of the flower which in part
. Nature and development of plants. Botany. FiG. 330. Fig. 329. Flower of the morning-glory (Ipomoea), showing the tubular corolla characteristic of the Polemoniales. Fig. 330. Boraginaceae: C, inflorescence of comfrey {Symphytum). Note the coiled inflorescence; a, a feature of this family. D, section of flower, showing the deeply four-lobed ovary and the stamens cohering high on the corolla and alternating with small tongue-like scales. dated with a pronounced irregularity of the corolla in the higher families and a high degree of specialization in the construction of the flower which in part accounts for the occurrence of the large number of individuals. The order is noted for its great number of showy flowers and the large tubular corollas which attain their highest perfection in several of the families. (a) The More Important Families of the Phlox Order.—The flowers of the lower families are regular, as in the morning- glory, sweet potato, dodder (Cuscuta), a yellow thread-like para-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Curtis, Carlton Clarence, 1864-1945. New York, H. Holt
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