. Plant life and plant uses; an elementary textbook, a foundation for the study of agriculture, domestic science or college botany. Botany. VARIATIONS IN STRUCTURE 281 Flowers which have only stamens or only pistils are called diclinous; those which have both stamens and pistils are called The flowers with which you are most familiar are monoclinous. Diclinous flowers with stamens are called staminate; those with pistils are called pistillate. Not all diclinous flowers lack a peri- anth ; there are many which have both sepals and petals. Diclinous flowers are more primitive than
. Plant life and plant uses; an elementary textbook, a foundation for the study of agriculture, domestic science or college botany. Botany. VARIATIONS IN STRUCTURE 281 Flowers which have only stamens or only pistils are called diclinous; those which have both stamens and pistils are called The flowers with which you are most familiar are monoclinous. Diclinous flowers with stamens are called staminate; those with pistils are called pistillate. Not all diclinous flowers lack a peri- anth ; there are many which have both sepals and petals. Diclinous flowers are more primitive than monoclinous ones; that is, flowers which pos- sessed only stamens or only pistils are believed to have preceded those pos- sessing both sta- mens and pistils. The flowers of nearly all gymno- sperms are dicli-. FiG. 101. — A group of cat-tails, showing the dense spikes of very simple flowers. The upper, woolly part of the spike is composed of pollen-producing (staminate) flowers which die when the cat-tail is ripe. The lower, dark part is composed of seed- producing (pistillate) flowers. These flowers are wind-pollinated and the pistillate ones ripen be- fore the staminate ones of the same plant. ' Diclinous flowers are also called unisexual or imperfect, and monoclinous ones bisexual or perfect. These terms are objectionable. Flowers are not, strictly speaking, sexual; and diclinous flowers, while more simple, are not less perfect than are monoclinous 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
