. The elements of structural botany [microform] : with special reference to the study of Canadian plants : to which is added a selection of examination papers. Plant anatomy; Botany; Botanique; Botanique. ; )| 11) llled ilti- |, in Ined of )or- at Pt-:i{Ns. 185 maturity, and by its elasticity ruptures the spore-case, "â¢vhich then discharges its spores, as shown in Fig. 234. The leaf of the Fern, then, is something more than an ordinary foliage- leaf, and is known as the frond. The petiole is called the dipe^ while the mid-rib is the rhachis. 325. A spore under proper conditionsdevelopes
. The elements of structural botany [microform] : with special reference to the study of Canadian plants : to which is added a selection of examination papers. Plant anatomy; Botany; Botanique; Botanique. ; )| 11) llled ilti- |, in Ined of )or- at Pt-:i{Ns. 185 maturity, and by its elasticity ruptures the spore-case, "â¢vhich then discharges its spores, as shown in Fig. 234. The leaf of the Fern, then, is something more than an ordinary foliage- leaf, and is known as the frond. The petiole is called the dipe^ while the mid-rib is the rhachis. 325. A spore under proper conditionsdevelopes a slender thread-like cell which eventually gives rise to a thin, flat, green expansion, resembling that shown in Fig. 235. This is called the pro- thalliwn. From the U; Jlt sur- face root-hairs are produced as sliown in the figure. On the same surface, among the root- hairs, arise mi- nute projections. Fig. 232. Fi-'. 231. Fig. 231. Root-stock and frond of Polypody. Fig. 232. vernation of the frond. Fig. 233 -" Magnified view of the sori. Fig. 234.âSporangium discharging spores ; greatly magnified. iU il ^ rip I-; ''i ill I â. 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 Spotton, H. B. (Henry Byron), 1844-1933. Toronto : W. J. Gage
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Keywords: ., book, bookcentury1800, booksubjectbotany, booksubjectplantanatomy
