. Botanisk tidsskrift. Botany; Plants; Plants. — 257 — The epidermis-cells which, like the barkcells, contain chloro- plasts (fig. 1, A, B, D), are in the different species rather different in size: being proportionally small in the species that have one stratum of cells (or more) between epidermis and the outmost. Fig. 2. Portions of the transverse sections of the stem of several Potamogeton- species. A, P. j>erfoliatus ; one of the vascular bundles of the axial cylinder. — B, P. coloratus ; one of the vascular bundles of the axial cylinder. — G, P. lucens; endodermis. — D, P. zosterifoliu
. Botanisk tidsskrift. Botany; Plants; Plants. — 257 — The epidermis-cells which, like the barkcells, contain chloro- plasts (fig. 1, A, B, D), are in the different species rather different in size: being proportionally small in the species that have one stratum of cells (or more) between epidermis and the outmost. Fig. 2. Portions of the transverse sections of the stem of several Potamogeton- species. A, P. j>erfoliatus ; one of the vascular bundles of the axial cylinder. — B, P. coloratus ; one of the vascular bundles of the axial cylinder. — G, P. lucens; endodermis. — D, P. zosterifolius ; endodermis. — E, P. natans; vascular bundle from the bark formed by a small portion of phloem surrounded by bast. — b, bark; e, endodermis; m, pith; si, sieve tubes; s, bast; lg, chan- nels formed by obliteration of vessels; c, the outmost stratums of cells of the axial cylinder. (A—D: 240:1; E\ 300:1). ' lacunae of the bark, while they are large where such a stratum is lacking, and where, consequently, the epidermis forms the outside limit of the outer lacunae. The outer walls of the epidermis-cells are rather thick and very strong. As a rule they will be co-. 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 Botaniske forening i København. København : H. Hagerups Forlag
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Keywords: ., bookcentury1800, bookdecade, booksubjectbotany, booksubjectplants
