. The elements of botany embracing organography, histology, vegetable physiology, systematic botany and economic botany ... together with a complete glossary of botanical terms. Botany. they are together called the essential organs of the flower. The calyx aud corolla may or may not be present without directly influencing the pro- duction of seed. When present, they surround the essential organs aud pro- tect them, hence they are called pro- tecting organs. They are also called the perianth {, around; anthos, flower). 53. A flower with the four parts present is called a com- plete flowe
. The elements of botany embracing organography, histology, vegetable physiology, systematic botany and economic botany ... together with a complete glossary of botanical terms. Botany. they are together called the essential organs of the flower. The calyx aud corolla may or may not be present without directly influencing the pro- duction of seed. When present, they surround the essential organs aud pro- tect them, hence they are called pro- tecting organs. They are also called the perianth {, around; anthos, flower). 53. A flower with the four parts present is called a com- plete flower; but if one or more of the parts are absent, the flower is said to be incomplete. If the essential organs are present it is called a perfect flower. Those â with stamens only (called staminate flowers), and those with pistils ouly (called pistillate flowers), are imperfect. If the parts are alike among themselves,â^that is, all the sepals alike in shape and size, all the petals alike in shape and size, and all the stamens alike in shape and size,âthe flower is said to be regular (Fig. 97). If this likeness in shape and size does not obtain in any one set of organs, the flower is said to be irregular (Fig. 98). If the petals, sepals, and sta- mens are of the same number, or the latter twice or thrice that number, the flower is said to be symmetrical; but if the number is not the same in each whorl, the flower is unsymmetrical. 54. If the relative in- sertion of the floral parts be examined, two types will be found to prevail. In the one case each petal is inserted directly in front of or within a sepal, and each Fig. 97. Kalmia blossonij a regular flower. Fig. 98. Fiowerof Lobelia^ 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. Pott
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectbotany, bookyear1883
