56. Lentibulariaceæ.—Insectivorous, marsh herbs, with radical, entire leaves, or much-divided floating leaves with bladders; and conspicuous, irregular flowers. Sepals and petals 5. Corolla usually lipped. Stamens 2. Fruit a one-chambered, many-seeded capsule. (The Butterwort Family.)
57. Primulaceæ.—Herbs, mostly with radical leaves; and conspicuous, regular flowers. Sepals, petals, and stamens 4 to 9. Stamens opposite the petals. Ovary one-celled, with free central placenta. Fruit a many-seeded capsule. (The Primrose Family.)
58. Plumbaginaceæ.—Herbs, mostly maritime, with radical or alternate leaves; and mostly blue, regular flowers. Sepals, petals, and stamens 5. Stamens opposite the petals, and usually free. Carpels 3 to 5. Ovary one-celled and one-seeded. (The Thrift Family.)
59. Plantaginaceæ.—Herbs with (generally) simple, entire, radical leaves; and spikes of greenish flowers. Sepals, petals, and stamens 4. Corolla scaly. Carpels usually 2 or 4. Fruit a one-to four-chambered capsule. (The Plantain Family.)
Note.—Plants in which calyx or corolla are, or appear to be, absent occur in orders 1, 6, 14, 26, 27, 28, 29, and 32.
60. Amaranthaceæ.—A smooth, prostrate herb, with scattered, stalked, exstipulate, simple leaves; and small, axillary, green, monœcious flowers. Sepals and stamens 3 to 5. (The Amaranth.)
61. Chenopodiaceæ.—Herbs with simple, exstipulate leaves, or leafless, jointed stems; and small green flowers. Sepals 3 to 5, persistent. Stamens 1 to 5, opposite the sepals. Fruit indehiscent. (The Goosefoot Family.)
62. Polygonaceæ.—Herbs with sheathing stipules; alternate, simple leaves; and small flowers. Sepals 3 to 6, green or coloured, usually persistent. Stamens 5 to 8. Fruit indehiscent. (The Dock Family.)
63. Eleagnaceæ.—A shrub with silvery scales; alternate, entire, exstipulate leaves; and inconspicuous, diœcious flowers. Sepals 2 to 4, persistent. Stamens 4. Fruit berry-like. (The Sea Buckthorn.)