. Comparative anatomy of the vegetative organs of the phanerogams and ferns;. Plant anatomy; Ferns. FIG. iig. Fig. 120. FIGS. 119 and 120.—Tradescantia albiflora. Fiff. J19. Outline and vascular bundle-system of the end of a stem cleared by potash, and divested of part of the cortex and cylinder by longitudinal ; The surface of section is turned towards the observer. Those bundles which in this position run in a higher plane are drawn darkly, those in lower planes more lightly. The successive leaves are indicated by the figures i—s; leaf 6 is just formed at the growing-point; opp
. Comparative anatomy of the vegetative organs of the phanerogams and ferns;. Plant anatomy; Ferns. FIG. iig. Fig. 120. FIGS. 119 and 120.—Tradescantia albiflora. Fiff. J19. Outline and vascular bundle-system of the end of a stem cleared by potash, and divested of part of the cortex and cylinder by longitudinal ; The surface of section is turned towards the observer. Those bundles which in this position run in a higher plane are drawn darkly, those in lower planes more lightly. The successive leaves are indicated by the figures i—s; leaf 6 is just formed at the growing-point; opposite the median bundle of i is an axillary bud. The bundles of leaves i, 2, and 3 are visible; y*the separate, i the united portions. From 3 are to be seen four marked/"; two of these (right of the median line) run into the leaf; two others, median and anterior, are cut off at their point of exit. From leaf 2 are three markedy; the middle one cut oif. The lines s show the course of the cauliiie bundles. Magnified about 25. Fig. 120 (40).—Transverse section through a young internode. In the middle the four united bundles; externally eight separate ones, tlie three principal ones marked &; then the circle often cauline bundles. IV. Type of the Commelinacejj;. Sect. 69. The bundles in the stem of those Commelinacese which have been investigated, and of many Potamogetons, have a course which differs from that of most Monocotyledons, and resembles rather that of the Piperacese (p. 249) and Mirabilis (Chap, XVI). This is seen particularly clearly in the plant widely knovcn. 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 Bary, A. de (Anton), 1831-1888; Bower, F. O. (Frederick Orpen), 1855-1948; Scott, Dukinfield Henry, 1854-1934. Oxford, Clarendon Press
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Keywords: ., bookcentury1800, bookdecad, booksubjectplantanatomy, bookyear1884
