The Elements of Structural Botany with Special Reference to the Study of Canadian Plants ...

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W.J. Gage & Company, 1897 - Botany - 237 pages
 

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Page v - Gray's Manual of the Botany of the Northern United States, and the writer most gratefully acknowledges the great assistance he has received from the admirable descriptions in that work.
Page 169 - Leaves oblong- to linear-lanceolate, the lowest tapering into margined petioles. Racemes numerous, rather strict.
Page 210 - Cuvier's definition, in form though not in purport, including under one species all the individuals which bear to each other "so close a resemblance as to allow of our supposing that they have proceeded originally from a single being or a single pair/' Both these definitions assume continuous descent from a primal form or protoplast ; and this view Dr.
Page 46 - Stamens 4-5, alternate with the petals, and inserted on a disk which fills the bottom of the calyx.
Page 137 - Distinguished generally by the anthers opening by a pore or small hole at the top of each cell, and from all the other orders with a monopetalous corolla, except the two foregoing, by having the stamens free from the corolla, as many or twice as many as its lobes. But the petals are sometimes entirely separate, especially in the third and fourth sub-families. Fruit several-celled. Style one. This large order comprises four very distinct sub-families, viz- : — 413.
Page 277 - Retuse. With a shallow notch at the end. Revolute. Rolled backward from the margin or apex upon the lower surface. Rhachilla. See rachilla. Rhizome. Same as rootstock. Rib. A main or prominent leaf vein; a raised line or ridge oil fruit or other organs.
Page 109 - ... left of the opposite point, and the third, a little on one side of the perpendicular to the first; so that, in the apple and pear tree, it is Only when we reach the sixth leaf, that we find one placed exactly over any of the five preceding. The sixth, in this instance, is found to be inserted directly over the first, the seventh over the second, the eighth over the third, and so on. Consequently, if we take a branch of an apple tree, and trace a line connecting the bases of the leaves, a regular...
Page 277 - Pinnatifld, deeply pinnately cleft. Pinnule, a secondary division of a frond ; one of the divisions of a pinna. Pistil, the seed-bearing organ of the flower. Pistillate, having pistil but no stamens. Pitted, marked with small pits or depressions. Placenta, the ridge or projection in the ovary to which the ovules are attached. Plicate, folded into plaits.
Page 119 - ... the lower somewhat crenate-toothed and tapering into a petiole: racemes numerous, dense, at length recurved, forming a large and crowded compound raceme or panicle which is usually turned to one side : involucral bracts linear-oblong, appressed : rays 5 to 9. — Dry hills or sterile, soil, throughout Texas. 17.
Page 97 - There are others whose roots penetrate the stems and roots of other living plants, and thus receive their nourishment as it were at second-hand. These are parasitic plants. The Dodder and Beech-drops, of Canadian woods, are well-known examples. Others, again, subsist upon decomposing animal or vegetable matter, and are hence known as saprophytes. Indian Pipe and Coral-root are good examples of saprophytic plants. Both parasites and saprophytes are usually destitute of green leaves, Fig. 126.— Adventitious...

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