. The anatomy of woody plants. Botany -- Anatomy. 212 THE ANATOMY OF WOODY PLANTS genus under discussion much more highly magnified. The flanking relation of the transfusion elements to the strand of xylem is now very distinct and recalls that found in the leaves of the Cupres- sineae, Taxineae, etc. Less typical manifestations of the develop- ment of transfusion tissues in the dicotyledons are provided by those forms in which bundles related to stomata exuding fluid water, and consequently known as water-stomata, terminate below. FIG. 159.—Transverse section of leaf of Alnus incana the stomat
. The anatomy of woody plants. Botany -- Anatomy. 212 THE ANATOMY OF WOODY PLANTS genus under discussion much more highly magnified. The flanking relation of the transfusion elements to the strand of xylem is now very distinct and recalls that found in the leaves of the Cupres- sineae, Taxineae, etc. Less typical manifestations of the develop- ment of transfusion tissues in the dicotyledons are provided by those forms in which bundles related to stomata exuding fluid water, and consequently known as water-stomata, terminate below. FIG. 159.—Transverse section of leaf of Alnus incana the stomatic pores in a mass of wide, short, tracheary elements. This condition, although doubtless derived from ancestral gymno- spermous structure, has departed so far from the original transfusion tissue that it can scarcely be included in the same morphological category. Transfusion tissue, as will be apparent from the last paragraph, has become a feature of very subordinate importance in the organi- zation of the leaf in the mass of the dicotyledons. The general structure of the foliar organs in the group may profitably occupy attention at this stage. Fig. 159 reproduces somewhat diagram-. 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 Jeffrey, Edward C. (Edward Charles), b. 1866. Chicago, Ill. , The University of Chicago Press
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