. The anatomy of woody plants. Botany -- Anatomy. FIBROVASCULAR TISSUES: VESSELS 95 tracheid. It is distinguished by the fact that its end walls do not make a definite angle with the lateral ones but taper grad- ually. It is further peculiar in the circumstance that its terminal pits are imperforate with one exception and have their mem- branes marked by the presence of a very distinct torus. In c is figured a tangential view of a vessel in Ephedra, showing the enlarged terminal pores in profile and making it clear that in this case, as in Pteris aquilina, the vessels become patent by the dis-
. The anatomy of woody plants. Botany -- Anatomy. FIBROVASCULAR TISSUES: VESSELS 95 tracheid. It is distinguished by the fact that its end walls do not make a definite angle with the lateral ones but taper grad- ually. It is further peculiar in the circumstance that its terminal pits are imperforate with one exception and have their mem- branes marked by the presence of a very distinct torus. In c is figured a tangential view of a vessel in Ephedra, showing the enlarged terminal pores in profile and making it clear that in this case, as in Pteris aquilina, the vessels become patent by the dis- appearance of the membranes of the pits. The organization of the. 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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