. The families of flowering plants. Plants; Phanerogams. 190 FAMILIES OF FLOWEEING PLAINTS. Western prickly pear {Opuntia hnmifusa). After Britt. & Brown 111. pi. North- east U. S. Indica, which now occurs throughout Southern Europe, is the food plant of the cochineal insect. Our own native Opuntias are highly ornamental in the dry fields and rocky ledges when covered in early summer with a mass of yellow flowers. The genus EcJmiocactus is noted for its very formidable hooked spines; while Cactus {Mamillaria), a genus in which the plants are of small size and the flowers of bright colors,
. The families of flowering plants. Plants; Phanerogams. 190 FAMILIES OF FLOWEEING PLAINTS. Western prickly pear {Opuntia hnmifusa). After Britt. & Brown 111. pi. North- east U. S. Indica, which now occurs throughout Southern Europe, is the food plant of the cochineal insect. Our own native Opuntias are highly ornamental in the dry fields and rocky ledges when covered in early summer with a mass of yellow flowers. The genus EcJmiocactus is noted for its very formidable hooked spines; while Cactus {Mamillaria), a genus in which the plants are of small size and the flowers of bright colors, is particu- larly desirable in pot cultivation. The order MTETrPLORAE, or Myetaues, may be known by the gamo- sepalous calyx, the sepals being joined together, and by the compound ovary, to which the calyx is usually adnate. There are 16 families, of which the most important are the Thymelaeaceae, Lythraceae, Bhizo- phoraceae, Combretaceae, Myrtaceae, Melastomaceae and Onagraceae. Family Geissolomaceae. Geissoloma Family. Consists of a single genus, Geissoloma, confined to the Cape of Good Hope. They are low shrubs of no (particular interest. Family Penaeaceae. Consists of abqut 5 genera and 20 species, also natives of South Africa. The parts of the flower are in fours, and the ovary affords an exception to the usual rule in the order, in that it is superior to, or free from, the calyx. Family Oliniaoeae. Olinia Family. Another family with a single genus, native of the same region. Family Thymelaeaceae, Mezereon Family, i Shrubs or trees with peculiarly tough inner bark. They have entire leaves, and flowers with. 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 Pollard, Charles Louis, 1872-. Washington, D. C. , The Plant World Co
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