. Contributions from the Botanical Laboratory of the University of Pennsylvania. Plants; Plants -- Pennsylvania. Fig. 5. Transverse section of ascending axis, showing sector of fibrovas- cular system X 200. 1. Chimaphila umbellata 2. Pleuricospora fimbriolata X = xylem; P = phloem; HB = hard bast; C = cortex. Transverse sections of the ascending axis were taken at a point half way between the flower or flowers and the leaves, or in the Monotropaceae half way between the flowers and the base of the ascending axis. In C. umbellata the epidermis appears as a hollow cylinder of oval cells with a t
. Contributions from the Botanical Laboratory of the University of Pennsylvania. Plants; Plants -- Pennsylvania. Fig. 5. Transverse section of ascending axis, showing sector of fibrovas- cular system X 200. 1. Chimaphila umbellata 2. Pleuricospora fimbriolata X = xylem; P = phloem; HB = hard bast; C = cortex. Transverse sections of the ascending axis were taken at a point half way between the flower or flowers and the leaves, or in the Monotropaceae half way between the flowers and the base of the ascending axis. In C. umbellata the epidermis appears as a hollow cylinder of oval cells with a thick outer cuticle and covering of wax. 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 University of Pennsylvania. Botanical Laboratory. Philadelphia : University of Pennsylvania Press
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