. The Eusporangiatae; the comparative morphology of the Ophioglossaceae and Marattiaceae. Ophioglossaceae; Marattiaceae. 148 THE MARATTIALES of his figures, where there is no forking of the mid-vein, the lateral veins seem to follow the margin of the leaf and rejoin the central vein, thus inclosing two large areoles like those found in the cotyledon of Kaulfussia; no mention of this, however, is made in the text. D. jamaicensis (fig. 125, A) shows a very similar form and vena-. A. Four young sporophytes still attached to the gametophyte of Dantra jamaicensis. X2. B. Young cotyledon of D. ellip
. The Eusporangiatae; the comparative morphology of the Ophioglossaceae and Marattiaceae. Ophioglossaceae; Marattiaceae. 148 THE MARATTIALES of his figures, where there is no forking of the mid-vein, the lateral veins seem to follow the margin of the leaf and rejoin the central vein, thus inclosing two large areoles like those found in the cotyledon of Kaulfussia; no mention of this, however, is made in the text. D. jamaicensis (fig. 125, A) shows a very similar form and vena-. A. Four young sporophytes still attached to the gametophyte of Dantra jamaicensis. X2. B. Young cotyledon of D. elliptica. X15. C. An older cotyledon of D. eUipiica. tion, but the cotyledon is larger and there is sometimes a forking of the lateral veins. In this species also there may sometimes be found a fan-shaped lamina with true dichotomous venation like that of Marattia, but as I had little material of this species I can not say how common this form is. It is probable that an examination. 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
Size: 2058px × 1214px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorcampbelldouglashought, bookcentury1900, bookdecade1910
