. Fundamentals of botany. Botany. ISO STRUCTURE AND LIFE HISTORIES illustrated than in the ferns. We shall therefore begin our study of life histories with that group of plants. ^ 141. Description of a Fern Plant.— common ferns of temperate regions have underground stems or rhizomes (sometimes called root-stocks), so that only the. Fig. "> -Tree ferns on the military road between Cayey and Caguas Porto Rico. (Plioto by M. A. Howe.) leaves appear above ^ The stem may be' branched or unbranched. When branched, the branches are pro- duced without reference to the ins
. Fundamentals of botany. Botany. ISO STRUCTURE AND LIFE HISTORIES illustrated than in the ferns. We shall therefore begin our study of life histories with that group of plants. ^ 141. Description of a Fern Plant.— common ferns of temperate regions have underground stems or rhizomes (sometimes called root-stocks), so that only the. Fig. "> -Tree ferns on the military road between Cayey and Caguas Porto Rico. (Plioto by M. A. Howe.) leaves appear above ^ The stem may be' branched or unbranched. When branched, the branches are pro- duced without reference to the insertion of the leaves, in contrast to the habit of higher plants of forming branches only in the upper angle {axil) between the stem 1 The leaves of ferns are often called 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 Gager, C. Stuart (Charles Stuart), 1872-1943. Philadelphia, P. Blakiston's son & co.
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