. Botanical gazette. Plants. ;// r. Fig. 4 Fig. 5 Figs. 4, 5.—Cycas media: fig. 4, transverse section of stem, showing only centripetal end of bundle of innermost cylinder; w, pith; wr, pith ray; /»x, distinct protox\'lem; /, unthickened xj^lem elements; X400; fig. 5, transverse section of stem, showing centripetal end of bundle of innermost cylinder highly magnified; m, pith; px, pro- ; .t', primary xylem; pits apparent in none of these cells; X850. As in Wordsell's account, spiral tracheids here can be fol- lowed more easily in leaf traces off the normal cylinder than they can in the
. Botanical gazette. Plants. ;// r. Fig. 4 Fig. 5 Figs. 4, 5.—Cycas media: fig. 4, transverse section of stem, showing only centripetal end of bundle of innermost cylinder; w, pith; wr, pith ray; /»x, distinct protox\'lem; /, unthickened xj^lem elements; X400; fig. 5, transverse section of stem, showing centripetal end of bundle of innermost cylinder highly magnified; m, pith; px, pro- ; .t', primary xylem; pits apparent in none of these cells; X850. As in Wordsell's account, spiral tracheids here can be fol- lowed more easily in leaf traces off the normal cylinder than they can in the cylinder itself. The reason for this is not that these elements have been destroyed in the cyhnder proper, but that ' , C. J., The adult cycad trunk. Box. 52:97. 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 Hanover, Ind. : J. M. Coulter
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Keywords: ., bookcollectionbiodiversity, bookcollectionnyb, booksubjectplants
