. Introduction to structural and systematic botany, and vegetable physiology. Botany. ENDOGENOUS OR MONOCOTYLEDONOUS PLANTS. 489 of six parts; their single fertile stamen (or in Cypripedium their two stamens) coherent with the style (composing the column) ; their pollen usually combined into two or more granular or waxy masses (poUinia) ; the ovary one-celled, with three parietal placentae,. covered with numerous minute seeds. —Ux. Orchis, Cypripedium (Ladies' Slipper), Arethusa, &c. In the tropics many are Epiphytes (149, Fig. 144). Many are cultivated for their beauty and singu- larity.
. Introduction to structural and systematic botany, and vegetable physiology. Botany. ENDOGENOUS OR MONOCOTYLEDONOUS PLANTS. 489 of six parts; their single fertile stamen (or in Cypripedium their two stamens) coherent with the style (composing the column) ; their pollen usually combined into two or more granular or waxy masses (poUinia) ; the ovary one-celled, with three parietal placentae,. covered with numerous minute seeds. —Ux. Orchis, Cypripedium (Ladies' Slipper), Arethusa, &c. In the tropics many are Epiphytes (149, Fig. 144). Many are cultivated for their beauty and singu- larity. The tuberiferous roots are often filled with a very dense mucilaginous or glutinous substance (as those of our Aplectram, thence called Putty-root). Of this nature is the Salep of commerce, the produce of some unascertained species of Middle Asia. The fragrant Vanilla is the fleshy frait of Vanilla planifolia and other tropical American species. The roots of Cypripedium are used as a substitute for Valerian. 938. Ord. ZingiberaceBB (Ginger Family) consists of some mostly showy tropical aromatic herbs, the nerves of their leaves diverging FIG. 1233. Orchis epectabilis : a, a separate flower. 1234. Column (somewhat magnified), from which the other parts are cut away: the two anther-cells opening and showing the pollen- masses. 1235. Magniiied pollen-mass, with its stalk. 1236. Arethusa hulbosa. 1237. The column, enlarged: the anther terminal and opening by a lid. 1238. Magnified anther, with the lid remOTcd, showing the two pollen-masses in each 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 Gray, Asa, 1810-1888. New York [etc. ] Ivison, Blakeman, Taylor & Co.
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