. An introduction to the structure and reproduction of plants. Plant anatomy; Plants. 176 LAND- AND WATER-FORMS two large air-canals separated only by narrow strips of tissue. Thicker outer walls and a distinct cuticle characterise the epi- dermal cells of the land-form (compare Fig. 93, b and e). The vascular strand of the latter has an almost continuous ring of lOQOQaOC. Fig. 93.—Transverse sections of the stems of the land- («-f) and water- forms {d-f) of the Starwort (Callilriclie siagnalis). a and d, entire sections ; h and e, epidermis ; c and/, vascular strands, la., lacuna ; Xy-, xylcm
. An introduction to the structure and reproduction of plants. Plant anatomy; Plants. 176 LAND- AND WATER-FORMS two large air-canals separated only by narrow strips of tissue. Thicker outer walls and a distinct cuticle characterise the epi- dermal cells of the land-form (compare Fig. 93, b and e). The vascular strand of the latter has an almost continuous ring of lOQOQaOC. Fig. 93.—Transverse sections of the stems of the land- («-f) and water- forms {d-f) of the Starwort (Callilriclie siagnalis). a and d, entire sections ; h and e, epidermis ; c and/, vascular strands, la., lacuna ; Xy-, xylcm-vessels. xylcm (Fig. 93, c) in contrast to the one or two xylem elements bordering the central canal [la.) in the water-form, whose vascular strand is slightly smaller (Fig. 93, /). Similar differences are encountered between the structure of the stems of the two forms in other 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 Fritsch, Felix Eugene, 1879-; Salisbury, E. J. (Edward James), Sir, b. 1886. London, G. Bell and sons ltd.
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectpl, booksubjectplants
