. Plant life and plant uses; an elementary textbook, a foundation for the study of agriculture, domestic science or college botany. Botany. 286 FLOWERS with petals more or less united are said to be sympetalous. (The word signifies petals together.) Flowers with separate petals are de- scribed as. poly- petalous. (This word signifies many petals.) As to their general form, corollas and calices (plural of calyx) are either regular or irreg- ular. Regular- ity of form is thought to be a more primitive regular corolla is (See Figure 108.). Fig. 106. — Dioecious, wind-pollinated flowers of the box
. Plant life and plant uses; an elementary textbook, a foundation for the study of agriculture, domestic science or college botany. Botany. 286 FLOWERS with petals more or less united are said to be sympetalous. (The word signifies petals together.) Flowers with separate petals are de- scribed as. poly- petalous. (This word signifies many petals.) As to their general form, corollas and calices (plural of calyx) are either regular or irreg- ular. Regular- ity of form is thought to be a more primitive regular corolla is (See Figure 108.). Fig. 106. — Dioecious, wind-pollinated flowers of the box elder. A, staminate flowers; each one consists of a group of stamens borne at the end of long, drooping flower stems (pedicels); each stamen is composed of a long anther and a very short filament, too short to be seen in the picture. B, pistillate flowers; note the prominent stigmas extended as two branches from each flower; these flowers have a small perianth. characteristic than irregularity. By a meant one that is radially symmetrical. A wheel is radially symmetri- cal. You can divide it into halves along the line of any radius and the halves will be alike. The same thing is true of regular corollas. Irregular corollas are bilaterally sym- metrical, which means that there is one way and only one way in which they can be divided into halves which are alike. (See Figure iog.) Our own bodies, so far as we can tell from their outward appearance, are examples of. 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 Coulter, John G. (John Gaylord), b. 1876. New York, American Book Co
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
