. Botany, with agricultural applications. Botany. DEFINITION OF A FRUIT 81 pappus, consisting of hair-like structures which correspond to the calyx of the ordinary type of flower, remains as a part of the fruit, forming a parachute-hke arrangement which enables the. Fig. 82. — Pistillate flower and fruit of a Hickory {Carya). A and B, ex- terior and Ulterior views of the flower. C, the nut. 6, bracts surrounding the pistil (p); 0, ovary. Flower much enlarged but fruit reduced. fruit to float in the air. Sometimes, as in the Spanish Needles, the calyx remains on the fruit as spiny appendages. I
. Botany, with agricultural applications. Botany. DEFINITION OF A FRUIT 81 pappus, consisting of hair-like structures which correspond to the calyx of the ordinary type of flower, remains as a part of the fruit, forming a parachute-hke arrangement which enables the. Fig. 82. — Pistillate flower and fruit of a Hickory {Carya). A and B, ex- terior and Ulterior views of the flower. C, the nut. 6, bracts surrounding the pistil (p); 0, ovary. Flower much enlarged but fruit reduced. fruit to float in the air. Sometimes, as in the Spanish Needles, the calyx remains on the fruit as spiny appendages. In the case of the Birch, Elm, Ash, and Maple, the fruit known as a samara or key-fruit has wing-Uke structures which are outgrowths from the ovary wall. --*:' .0- _ Fig. 83. — Flower and fruit of an Oak (Quercus). A, pistillate flower, showing the bracts (6) which surround the ovary. B, section of the flower, showing the ovary (o) and the bracts (6). C, acorn, showing the ovary and cup. s, stigmas. Flower much enlarged but fruit nearly natural size. Definition of a Fruit. — From an examination of the above types of fruits, it follows that a fruit may consist of: (1) simply the ovary either dry or fleshy; (2) ovary or ovaries and recep-. 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 Martin, John N. (John Nathan), b. 1875. New York, John Wiley & sons, inc. ; [etc. ,etc. ]
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectbotany, bookyear1920
