. Plant life, considered with special references to form and function. Plant physiology. THE SHOOT. 95 to die at the close of the growing season, an underground portion really survives, and sends up the neu- shoots. Such plants, if they live for two years, are called biennials ; or, if they live for several or many years, are called Fig. io8,—Shoots of V'ella spinosa^ sho\\-ing ihorns. Natural size.—After Kemer. The shoot may be composed mainly of soft tissues, and persist imderground, where it is protected against unfavorable conditions, such as drouglit and cold, and esiiecially
. Plant life, considered with special references to form and function. Plant physiology. THE SHOOT. 95 to die at the close of the growing season, an underground portion really survives, and sends up the neu- shoots. Such plants, if they live for two years, are called biennials ; or, if they live for several or many years, are called Fig. io8,—Shoots of V'ella spinosa^ sho\\-ing ihorns. Natural size.—After Kemer. The shoot may be composed mainly of soft tissues, and persist imderground, where it is protected against unfavorable conditions, such as drouglit and cold, and esiiecially against sudden changes ; or it ma\' be composed mainly of mechan- ical tissues, and be fully exposed, as are the shoots of trees. In these cases the lea\'es generally perish and drop oft an- nually, but in the " e\ergreen " plants they li\e moie than one growing season. i/^. 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 Barnes, Charles Reid, 1858-1910. New York, H. Holt & company
Size: 1600px × 1561px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectplantphysiology
