. Class-book of botany : being outlines of the structure, physiology and classification of plants : with a flora of the United States and Canada . Botany; Botany; Botany. 268, Pistillate flowet of Ealm-of-Gilead. 269, Staminate. 2T0, Diploolinium Evansiannm. a, staminate ; b, pistillate. 422. A NEUTEAL FLOWER is a perianth or calyx only, having neither stamens nor pistils. Such are the ray-flowers of many of the Compositse, and of the cymes of Hydrangea, high cranberry, etc., which in cultivation may all become neutral, as in the snow-ball. 271 423. Unsymmetrical flow- ers. The term symmetry,
. Class-book of botany : being outlines of the structure, physiology and classification of plants : with a flora of the United States and Canada . Botany; Botany; Botany. 268, Pistillate flowet of Ealm-of-Gilead. 269, Staminate. 2T0, Diploolinium Evansiannm. a, staminate ; b, pistillate. 422. A NEUTEAL FLOWER is a perianth or calyx only, having neither stamens nor pistils. Such are the ray-flowers of many of the Compositse, and of the cymes of Hydrangea, high cranberry, etc., which in cultivation may all become neutral, as in the snow-ball. 271 423. Unsymmetrical flow- ers. The term symmetry, as used in botany, refers to number only. A flower becomes unsymmetrical by the partial development of any set or circle in respect to the num- ber of its organs. The mustard family affords a good, example. 424. Flowers op the cruci- FERS. The flowers of mustard, cress, etc, are understood to be 4-merous (V). The sepals are four, petals four, but the stamens are' six and the styles but two. The stamens are arranged in two circles, having two of those in the outer circle suppressed or reduced to mere glands. Two of the car- pels are also suppressed. (256.) 425. In the mint faihly and the figworts one or three of the stamens is generally abortive. Here, while the flowers are %/, the stamens are four in somo spe- cies and only two in others. The missing stamens, however, often appear in the guise of slender processes—the rudiments of sta- mens—^proving in an interesting 271, "Eadiant" panicle of Hydrangea quercifoUum; manner tne natural tendency to the larger flowers neutral. symmetry 426. Other examples. In the V flowers of poppy, the sepais are but two; in V spring-beauty they are but two; in both cases too few for symmatry. In lark-. 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 Wood, Alphons
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