. Class-book of botany [microform] : being outlines of the structure, physiology, and classification of plants : with a flora of the United States and Canada. Botany; Botany; Plants; Plants; Botanique; Botanique; Plantes; Botanique. 00 THK PLAN OF THE FLOWER. 1. In the unequal size of like organs (petals of mnllein). 2. In their dissimilar/orm.» or positions (petals of the pea). 3. In the unequal cohesion of like parts (petals of Lobelia). 4. In unequal suppressions (stamens of the Labiate flowers, where, indeed, as in many other flowers, all these phases of irregularity are combined). 8M 887


. Class-book of botany [microform] : being outlines of the structure, physiology, and classification of plants : with a flora of the United States and Canada. Botany; Botany; Plants; Plants; Botanique; Botanique; Plantes; Botanique. 00 THK PLAN OF THE FLOWER. 1. In the unequal size of like organs (petals of mnllein). 2. In their dissimilar/orm.» or positions (petals of the pea). 3. In the unequal cohesion of like parts (petals of Lobelia). 4. In unequal suppressions (stamens of the Labiate flowers, where, indeed, as in many other flowers, all these phases of irregularity are combined). 8M 887 289. 286, Flower (magnified) of Myosuros J a vertical section showing Its elongated receptacle, etc. 267, Tlie same, natural size. 288, Flower of Isopyrum blternatum; vertical section, showli-g the convex or globular receptacle, etc. 289, Flower of rose, showing its excavated torus. 442. The regular receptacle has no internodes. It bears the several whorls of the flower in close contact with each other, and is usually slxort and depressed. 443. Lengthened receptacle. When these whorls arc nnnieroiis, as in buttercups, tulip-tree, the receptacle is necessarily elongated. So in Myosurus, blackberry, strawberry. In the two latter it imbibes the 290 nutritious juices of the plant and becomes a part of the fruit. 444. Excavated recepta- cle. On the contrary, the to- rus instead of lengthening may be hollowed out in the center. The carpels of the rose are sit- uated in suqh a cavity, while tlio other organs are borne upon its elevated rim. In Nelumbium the carpels are immersed in as many separate excavations in a large, fleshy 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, Alphonso, 1810-1881. New York; Chicago : A. S. Barnes; Troy, N. Y. : H. B. Nims


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Keywords: ., bookcentury1800, bookdecade1870, booksubjectbotany, booksubjectpl