. Foundations of botany. In other plants, as in such grassesas Stipa (Fig. 225), and in Indian corn, the leaf rolls upwhen the weather is very dry and unrolls again when itreceives a better supply of water. 389. Mesophytes. — A mesophyte is a plant whichthrives best with a moderate supply of water. The greatmajority of the wild and the cultivated plants of theUnited States are mesophytes, and what has been learned Fig. 224. — Cross-Section of Rolled-Up Leaf of Crow-Berry {Empetrum nigrum). (Magnified.) 318 FOUNDATIONS OF BOTANY from Part I of this book about the forms, structure, andhabits of
. Foundations of botany. In other plants, as in such grassesas Stipa (Fig. 225), and in Indian corn, the leaf rolls upwhen the weather is very dry and unrolls again when itreceives a better supply of water. 389. Mesophytes. — A mesophyte is a plant whichthrives best with a moderate supply of water. The greatmajority of the wild and the cultivated plants of theUnited States are mesophytes, and what has been learned Fig. 224. — Cross-Section of Rolled-Up Leaf of Crow-Berry {Empetrum nigrum). (Magnified.) 318 FOUNDATIONS OF BOTANY from Part I of this book about the forms, structure, andhabits of ordinary plants, together with what the studentsown observation, aside from the study of botany, has taughthim, should suffice to give him a fair idea of mesophyticplant life. The typical mesophyte of the northern United States isan annual, since most of our larger perennials pass thewinter in a xerophytic condition, to avoid destruction bydrying up during the long period whenthe roots can absorb little or no water.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectplants, bookyear1901
