. An introduction to the structure and reproduction of plants. Plant anatomy; Plants. BICOLLATERAL BUNDLES 8i and outer (Fig. 37). Two groups of phloem occur in each bundle, one external (Ph.'), separated from the xylem b\- the cambium (Ca), the other internal (;), separated from the protoxylem () by ordinary parenchyma. Such bundles, termed bicol- lateral, are not uncommon in certain families of Flowering Plants,. Fig. 37.—Diagram of a transverse section of the stem of tlie Vegetable Marrow {Cucurbila), Ca,, cambium ; Col., coUencliyma ; Ep., epi- dermis ; jl/..r_y., metaxj'lera
. An introduction to the structure and reproduction of plants. Plant anatomy; Plants. BICOLLATERAL BUNDLES 8i and outer (Fig. 37). Two groups of phloem occur in each bundle, one external (Ph.'), separated from the xylem b\- the cambium (Ca), the other internal (;), separated from the protoxylem () by ordinary parenchyma. Such bundles, termed bicol- lateral, are not uncommon in certain families of Flowering Plants,. Fig. 37.—Diagram of a transverse section of the stem of tlie Vegetable Marrow {Cucurbila), Ca,, cambium ; Col., coUencliyma ; Ep., epi- dermis ; jl/..r_y., metaxj'lera ; PA.', outer phloem ; ;, inner phloem ; , protoxylem ; Scl., sclerenchyma (black). such as the Cucumber-family or Cucurbitaceae (to which the Marrow belongs), and the Potato-family or Solanacefe, and offer a marked contrast to the normal collateral type seen in the Sun- flower. The elements of both xylem and phloem are remarkably large, and are therefore especially suited for a study of their detailed structure, which can be rendered more distinct by staining with eosin (see Appendix VI). 6. 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
