. How ferns grow. Ferns; Growth (Plants). Development of the Fern Leaf 19 In the leaf with pinnate anastomose venation, the incisions by means of which segments are formed occur, as in the leaf with pinnate free venation, between the primary branches of the leaf's midveins, and the midveins of each of these segments start, as in the latter leaf, from the primary branch, as a base, contained within the segment. In Fig. 5 is shown the section of a leaf with pinnate anasto- mose venation in which segments have begun to form, with the midveins of these segments not yet evident. In Fig. 6 is shown
. How ferns grow. Ferns; Growth (Plants). Development of the Fern Leaf 19 In the leaf with pinnate anastomose venation, the incisions by means of which segments are formed occur, as in the leaf with pinnate free venation, between the primary branches of the leaf's midveins, and the midveins of each of these segments start, as in the latter leaf, from the primary branch, as a base, contained within the segment. In Fig. 5 is shown the section of a leaf with pinnate anasto- mose venation in which segments have begun to form, with the midveins of these segments not yet evident. In Fig. 6 is shown a longitudinal sec- tion of the segment of a leaf with similar venation, partly. 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 Slosson, Margaret. New York, H. Holt
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyo, bookyear1906
