. Essentials of botany. Botany; Botany. THE FRUIT 189 of a rather thin-skinned, one- to several-celled, fleshy ovary and its contents. In the first three cases above mentioned the calyx forms no part of the fruit, but it does in the last two, and in a great number of berries. The gourd-fruit and the hesperidium, such as the orange (Fig. 141), lemon, and lime, are merely decided modificar tions of the berry proper. 231. Aggregate Fruits. — The raspberry (Fig. 142),- blackberry, and similar fruits consist of many carpels, each ^" \. I II III Fig. 142. I, Strawberry; II, Raspberry ; III, Mul
. Essentials of botany. Botany; Botany. THE FRUIT 189 of a rather thin-skinned, one- to several-celled, fleshy ovary and its contents. In the first three cases above mentioned the calyx forms no part of the fruit, but it does in the last two, and in a great number of berries. The gourd-fruit and the hesperidium, such as the orange (Fig. 141), lemon, and lime, are merely decided modificar tions of the berry proper. 231. Aggregate Fruits. — The raspberry (Fig. 142),- blackberry, and similar fruits consist of many carpels, each ^" \. I II III Fig. 142. I, Strawberry; II, Raspberry ; III, Mulberry. of which ripens into a part of a compound mass, which, for a time at least, clings to the receptacle. The whole is called an aggregate fruit. What is the most important difference in structure between a fully ripened raspberry and a blackberry? 232. Accessory Fruits and Multiple Fruits Not infre- quently, as in the strawberry (Fig. 142), the main bulk of the so-called fruit consists neither of the ripened ovary nor its appendages. Such a combination is called an accessory fruit. Examine with a magnifying glass the surface of a small unripe strawberry, then that of a ripe one, and finally a section of a ripe. 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 Bergen, Joseph Y. (Joseph Young), 1851-1917. Boston, Ginn
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectbotany, bookyear1908
