. The classification of flowering plants. Plants. 282 FLOWERING PLANTS bracteoles below the joint. The often large showy flowers are generally bisexual; they are pentamerons, obdiplostemonous and, at any rate in the gynoecium, obliquely zygomorphic. The recej)tacle is convex or flat, rarely slightly hollowed, when the flower becomes perigynous. The sepals are generally united at the base and often provided with nectaries of varying form; they persist in the fruit. The petals have generally a claw, and a fringed or toothed margin, and form a regular corolla; the corolla is, however, sometimes o
. The classification of flowering plants. Plants. 282 FLOWERING PLANTS bracteoles below the joint. The often large showy flowers are generally bisexual; they are pentamerons, obdiplostemonous and, at any rate in the gynoecium, obliquely zygomorphic. The recej)tacle is convex or flat, rarely slightly hollowed, when the flower becomes perigynous. The sepals are generally united at the base and often provided with nectaries of varying form; they persist in the fruit. The petals have generally a claw, and a fringed or toothed margin, and form a regular corolla; the corolla is, however, sometimes obliquely zygomorphic. The androecium is typically obdiplostemonous and regular, but frequently becomes. Fig. 137. Malpighia glabra. A. Flowering shoot, ^ nat. size. B. Flower, x 3, C. Flower with sepals and petals removed, cut lengthA^dse, x 5. D. Diagram of flower; the shaded portions on the sepals indicate the glands. E. Drupe cut lengthwise shelving seed and embryo, x 2. F. Drupe cut across shewing the three pyrenes, x 2. G. One pyrene, x 2. (After Flor. J am.) zygomorphic by one or more members becoming staminodial or completely aborted. The filaments are generally united below, forming a longer or shorter tube. The anthers are introrse with often an enlarged connective. The pistil consists generally of three (rarely two, four or five) united carpels, placed obliquely, the plane of symmetry passing through the third sepal in order of develop- ment. The inner angle of each chamber bears a single pendulous ovule with upAvardly directed micropyle and a ventral funicle. The structure of the fiower implies pollination by aid of insects; cleistogamic flowers also occur. The fruit divides into one-seeded portions which are sometimes winged or nutlike or split open on. 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 wo
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectplants, bookyear1904
