. The Eusporangiatae; the comparative morphology of the Ophioglossaceae and Marattiaceae. Ophioglossaceae; Marattiaceae. Fio. 71. Ophioglossum simplex Ridley (after Bower). The fertile leaf has no sterile Fig. 72.—(A-D, after Luerssen.) A, B. Botrychium simplex Hitchcock. C,B. lernatum Swz. D, B. lunaria (L.) Swz. E, B, virginianum (L.) 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 Campbell, Douglas Houghto

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. The Eusporangiatae; the comparative morphology of the Ophioglossaceae and Marattiaceae. Ophioglossaceae; Marattiaceae. Fio. 71. Ophioglossum simplex Ridley (after Bower). The fertile leaf has no sterile Fig. 72.—(A-D, after Luerssen.) A, B. Botrychium simplex Hitchcock. C,B. lernatum Swz. D, B. lunaria (L.) Swz. E, B, virginianum (L.) 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 Campbell, Douglas Houghton, 1859-1953. Washington, D. C. , Carnegie Institution of Washington

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Keywords: ., bookauthorcampbelldouglashought, bookcentury1900, bookdecade1910