An illustrated guide to the flowering plants of the middle Atlantic and New England states (excepting the grasses and sedges) the descriptive text written in familiar language . positesides of the stem. Dark green above, light bluish-green below. Through-out our area. SUB-DIVISION II—ANGIOSPERMAE The ovules in this great division are concealed in a cavity knownas the ovary. (Fig. 1, below.) The flower consists essentially of a pistil, at the base of whichis the ovary containing the ovules and one or two or more stamensbearing anthers on which are developed the pollen grains destinedto fertiliz
An illustrated guide to the flowering plants of the middle Atlantic and New England states (excepting the grasses and sedges) the descriptive text written in familiar language . positesides of the stem. Dark green above, light bluish-green below. Through-out our area. SUB-DIVISION II—ANGIOSPERMAE The ovules in this great division are concealed in a cavity knownas the ovary. (Fig. 1, below.) The flower consists essentially of a pistil, at the base of whichis the ovary containing the ovules and one or two or more stamensbearing anthers on which are developed the pollen grains destinedto fertilize the ovules. The pistil and stamens may occupy dif-ferent flowers. Flower receptacles bearing these two essential ele-ments separately may grow upon the same plant, in which casethey are said to be monoecious, or the pistillate flowers may oc-cupy one plant the staminate another, in which case they are saidto be dioecious. When the pistils and stamens are found on the same receptaclethe flower is said to be a perfect flower and this is the form pre-vailing in the great majority of plants of this great division. Plants of this sub-division are divided into two I, showing the numerous cotyledons of pine. 2, a grain of wheat showingthe position of the embryo at the base. 3, a grain showing the developmentof the young plant. 4, the two cotyledons of a garden bean with the embryobetween them. 5, a leaf 01 grass, showing the parallel veins of the mono-cotyledons. 6, a leaf of Asarum, showing the net veins of the dicotyledons. Class I.—MONOCOTYLEDONOUS PLANTS Plants with Single-Lobed OvulesThe embryo has a single seed lobe (cotyledon) (Figs. 2 and 3,above). Leaves generally parallel-veined (or nerved) (Fig. 5),enfolding one another at the base (sheathing). Earely the leavesare net-veined. 90 TYPHACEAE Flower, as a rule, 3 parted in its various divisions, thus, theperianth consists of 3 + 3 parts, all of which may have the appear-ance of petals, but which structurally ma
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectplants, bookyear1910
