File:The Oak (Marshall Ward) Fig 12.jpg
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English: Fig. 12.—Transverse section of young stem, showing primary vascular bundles, etc., highly magnified. a and h, the pith; c, primary cortex; i, epidermis; h, periderm (cork); g, collenchyma. Two complete primary vascular bundles, and parts of two others, are shown, separated by the primary medullary rays. r, spiral vessels (protoxylem); k, bast-fibers (protophloëm); n, m, cambium, separating the phloëm from the xylem; p, wood-parenchyma. Secondary medullary rays are seen in the bundles, as also are pitted vessels of different sizes. (Th. Hartig.) |
| Date | |
| Source | The Oak: A Popular Introduction to Forest-Botany |
| Author | H. Marshall Ward |
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| current | 20:30, 2 August 2012 | | 1,400 × 1,785 (443 KB) | Keith Edkins (talk | contribs) | == {{int:filedesc}} == {{Information |Description={{en|1=Fig. 12.—Transverse section of young stem, showing primary vascular bundles, etc., highly magnified. ''a'' and ''h'', the pith; ''c'', primary cortex; ''i'', epidermis; ''h'', periderm (cork); ... |
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