. The essentials of botany. Botany. 48 BOTANY. lariform tissue are masses of soft tissue (parenchyma) and a few spiral vessels, the latter occurring near the foci of the elliptical cross-section of the bundle (s). Surrounding or partly surrounding the tracheary portion of the bundle is a layer of sieve-tubes (sp), separated from the large sea-. Fig. 31 .—Part of a transverse section of the flbi'O-vascular bundle of the under- ground stem of the common Brake-fern (Pteris aquilina). s, spiral vessel; g, ff, scalarlform vessels; sp, sieve-tissue; b, fibrous tissue; sg, bundle-sheath. lariform ves
. The essentials of botany. Botany. 48 BOTANY. lariform tissue are masses of soft tissue (parenchyma) and a few spiral vessels, the latter occurring near the foci of the elliptical cross-section of the bundle (s). Surrounding or partly surrounding the tracheary portion of the bundle is a layer of sieve-tubes (sp), separated from the large sea-. Fig. 31 .—Part of a transverse section of the flbi'O-vascular bundle of the under- ground stem of the common Brake-fern (Pteris aquilina). s, spiral vessel; g, ff, scalarlform vessels; sp, sieve-tissue; b, fibrous tissue; sg, bundle-sheath. lariform vessels by a layer of parenchyma. Outside of the sieve-tissue is a mass of fibrous tissue (b), which is itself bounded externally by another layer of parenchyma. The whole bundle is surrounded by a bundle-sheath. 89. A noticeable feature in the structure of this bundle. 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 Bessey, Charles E. (Charles Edwin), 1845-1915. New York : H. Holt and company, ;
Size: 1384px × 1805px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, bookpublisher, booksubjectbotany
