. Plants; a text-book of botany. Botany. THE FLOWER 221 the young sporopliylls, but they are all alike, forming what is called the perianth (Figs. 197,198). In still higher forms the perianth differentiates, the inner floral leaves become more delicate in texture, larger and generally brightly colored (Fig. 199, J). The outer set may remain scale-like, or become like small foliage leaves. "When the dif- ferentiation of the peri- anth is distinct, the outer set of floral leaves is called the calyx, each leaf being a sejjal; the inner set is the corolla, each leaf being a petal (Fig. 200).
. Plants; a text-book of botany. Botany. THE FLOWER 221 the young sporopliylls, but they are all alike, forming what is called the perianth (Figs. 197,198). In still higher forms the perianth differentiates, the inner floral leaves become more delicate in texture, larger and generally brightly colored (Fig. 199, J). The outer set may remain scale-like, or become like small foliage leaves. "When the dif- ferentiation of the peri- anth is distinct, the outer set of floral leaves is called the calyx, each leaf being a sejjal; the inner set is the corolla, each leaf being a petal (Fig. 200). Sometimes, as in the lily, all the floral leaves become uniformly large and brightly colored, in which case the term perianth is retained (Fig. 201). In other cases, the calyx may be the large and colored set, but whenever there is a clear distinction between sets, the outer is the calyx, the inner the corolla. Both floral sets may not appear, and it has become the custom to regard the missing set ^^^^ ^^j __^^ eaeter-my. Monocotyledoi,, as the corolla, such showing perianth (a), BtamcDS (S), stigma (c), ji X, • „ n^u^A flower bnd id), and a carpel after the peri- flowers being called anth has fallen (/,. with its knob-like sti^a, ap etaloUS, meaning long style, and slender ovary.— 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 Merle, 1851-1928. New York, D. Appleton and company
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