. The elements of botany embracing organography, histology, vegetable physiology, systematic botany and economic botany ... together with a complete glossary of botanical terms. Botany. THE FLOWEB. 39. 45- The Flower.—If a leafy shoot be reduced in length, the leaves will be brought close together; if the internodes (portions of the stem between the joints) are •want- ing entirely, the leaves will be in whorls, or form a ro- sette. If now these leaves undergo cer- ' 84 tain changes in form and function, a Flower will be formed. This change or modification of one part or organ into another, is
. The elements of botany embracing organography, histology, vegetable physiology, systematic botany and economic botany ... together with a complete glossary of botanical terms. Botany. THE FLOWEB. 39. 45- The Flower.—If a leafy shoot be reduced in length, the leaves will be brought close together; if the internodes (portions of the stem between the joints) are •want- ing entirely, the leaves will be in whorls, or form a ro- sette. If now these leaves undergo cer- ' 84 tain changes in form and function, a Flower will be formed. This change or modification of one part or organ into another, is called metamorphosis (Gr. meta, beyond; morpha, form) ; the flower is a metamorphosed branch, and' the different organs are modified leaves (Fig. 84). Proofs of this are found in the partial or complete reversion of floral organs back into ordinary leaves; indeed, numerous intermediate forms may readily be found which form a gradual transition from a foliage leaf to the most highly differentiated organ of the flower. 46. The axis and leaves, belonging to or near the flower- cluster, undergo modifications to form peduncles and pedicels, and bracts and bractlets. Thestem, or stalk, which supports a flower-cluster, or a single flower, is called the peduncle (Fig. 85, jpda). If the peduiiele is wanting, that is, if the flower is inserted directly on the stem, it .(t^^ flower) is said to be sessile. When the peduncle arises from the ground, it is called a scape. Fig. 84. Transformation of petals into stamens. Fig. 85. Flowers supported by pedicels (^ed), which are branches of the peduncle {fdn)i br, bracts; brt, 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 Kellerman, William Ashbrook, 1850-1908. Philadelphia, J. E. Potter and Company
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectbotany, bookyear1883
