. A manual of the North American gymnosperms [microform] : exclusive of the cycadales but together with certain exotic species. Bois; Trees; Gymnosperms; Gymnospermes; Arbres; Wood. PIJ4TF. II. PsEUDOTSUGA MiocENA. Radial section showing the effects of flecav in lireaking up the nuljgtance of the cell wall along the lines of »t iution. X 137-8. Plate 12. Cordaites materiakium. Transverse section showing the absence of growth rings, the character of the tracheids, and the distribution of resinous tracheids near the medullary rays. X Please note that these images are extracted from scanned


. A manual of the North American gymnosperms [microform] : exclusive of the cycadales but together with certain exotic species. Bois; Trees; Gymnosperms; Gymnospermes; Arbres; Wood. PIJ4TF. II. PsEUDOTSUGA MiocENA. Radial section showing the effects of flecav in lireaking up the nuljgtance of the cell wall along the lines of »t iution. X 137-8. Plate 12. Cordaites materiakium. Transverse section showing the absence of growth rings, the character of the tracheids, and the distribution of resinous tracheids near the medullary rays. X 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 Penhallow, D. P. (David Pearce), 1854-1910. Boston : Ginn & Co.


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