. Elements of botany. Plants. Fig. 207.—a Fern (AspUUum Filix-mas). 1, general view of the plant; a, young fronds unrolling; 2, cross-section of the rootstock, showing tibro-vascular bundles, a a ; 3, a pinnule with fruit-tlots ; a a, indusiuni; h, spore-cases ; 4, vertical section through 3 a ; 5, vertical section at right angles to that of (4), showing : a, section of pinnule of leaf ; b, section of indusiuni; c, spore-cases ; 6, a single spore-case, with its stalk, a, and its elastic ring, c, discharging spores at d. (1 is reduced to about ^ natural size ; 2, 3, are slightly niagnitied ; 4

---

. Elements of botany. Plants. Fig. 207.—a Fern (AspUUum Filix-mas). 1, general view of the plant; a, young fronds unrolling; 2, cross-section of the rootstock, showing tibro-vascular bundles, a a ; 3, a pinnule with fruit-tlots ; a a, indusiuni; h, spore-cases ; 4, vertical section through 3 a ; 5, vertical section at right angles to that of (4), showing : a, section of pinnule of leaf ; b, section of indusiuni; c, spore-cases ; 6, a single spore-case, with its stalk, a, and its elastic ring, c, discharging spores at d. (1 is reduced to about ^ natural size ; 2, 3, are slightly niagnitied ; 4 is more magnified ; 5, G are considerably magnified.). 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 Bergen, Joseph Y. (Joseph Young), 1851-1917; Bergen, Joseph Y. (Joseph Young), 1851-1917. Bergen's Botany: key and flora, Pacific coast ed. Boston : Ginn

---

Size: 1285px × 1943px
Photo credit: © Paul Fearn / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1800, bookdecade1890, booksubjectplants, bookyear1896