. Foundations of Botany. Botany. 382 FOUNDATIONS OF BOTANY the calyx, sometimes from an involucre. Their office is to attach the fruit to the hair or fur of passing animals. Often, as in sticktights (Fig. 272), the hooks are compara- tively weak, but in other cases, as in the cocklebur (Fig. 272), and still more in the Martynia, the fruit of which in the green condition is much used for pickles, the hooks are exceedingly strong. Cockleburs can hardly be removed from the tails of horses and cattle, into which. i ii in Fig. 271. — Three Fruits adapted for Dispersal by the Shaking Action of the W
. Foundations of Botany. Botany. 382 FOUNDATIONS OF BOTANY the calyx, sometimes from an involucre. Their office is to attach the fruit to the hair or fur of passing animals. Often, as in sticktights (Fig. 272), the hooks are compara- tively weak, but in other cases, as in the cocklebur (Fig. 272), and still more in the Martynia, the fruit of which in the green condition is much used for pickles, the hooks are exceedingly strong. Cockleburs can hardly be removed from the tails of horses and cattle, into which. i ii in Fig. 271. — Three Fruits adapted for Dispersal by the Shaking Action of the Wind. I, celandine ; II, pea ; III, jimson weed (Datura). they have become matted, without cutting out all the hairs to which they are fastened. A curious case of distribution of this kind occurred in the island of Ternate,' in the Malay Archipelago. A buffalo with his hair stuck full of the needle-like fruits of a grass1 was sent as a present to the so-called King of Ternate. Scattered from the hair of this single animal, the grass soon spread over the whole island. 1 Andropogon 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 & company
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