. Carnegie Institution of Washington publication. . Young sporophyte oi Marattia douglasii still attached to thr gametophyte, pr; Natural si/r. Fig. 12^. A. Young sporophyte of Kaulfussia attached to gametophyte, pr. X2. B. Cotyledon from another plant. X2. C A later leaf; si, stipule. Xl. in the second leaf. Figure 124, C, shows drawings of a number of the forms from my collection, showing the variation from a strictly pinnate to a perfectly dichoto- mous venation. Many of them show an intermediate venation, but with very few exceptions, even where a midrib was present, this was forked at the

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. Carnegie Institution of Washington publication. . Young sporophyte oi Marattia douglasii still attached to thr gametophyte, pr; Natural si/r. Fig. 12^. A. Young sporophyte of Kaulfussia attached to gametophyte, pr. X2. B. Cotyledon from another plant. X2. C A later leaf; si, stipule. Xl. in the second leaf. Figure 124, C, shows drawings of a number of the forms from my collection, showing the variation from a strictly pinnate to a perfectly dichoto- mous venation. Many of them show an intermediate venation, but with very few exceptions, even where a midrib was present, this was forked at the apex, indicating. 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 Carnegie Institution of Washington. Washington, Carnegie Institution of Washington

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Keywords: ., bookauthorcarnegie, bookcentury1900, bookdecade1910, bookyear1911