. Studies in fossil botany . Paleobotany. 426 STUDIES IN FOSSIL BOTANY are the most extensive and, at present, the best in- vestigated. The leaves of Neuropteris are of a very large size, bipinnate, tripinnate, or even quadripinnate in com- position, with ovate or oblong leaflets somewhat. Fig. 161.—Ne7iroj>tcris keterophylla. Part of vegetative frond, slightly enlarged. From a photograph by Mr. R. Kidston, cordate at the base, and usually attached to the rachis by a short stalk. The median nerve of the pinnule is distinct till near the end, where it breaks up into smaller dichotomou
. Studies in fossil botany . Paleobotany. 426 STUDIES IN FOSSIL BOTANY are the most extensive and, at present, the best in- vestigated. The leaves of Neuropteris are of a very large size, bipinnate, tripinnate, or even quadripinnate in com- position, with ovate or oblong leaflets somewhat. Fig. 161.—Ne7iroj>tcris keterophylla. Part of vegetative frond, slightly enlarged. From a photograph by Mr. R. Kidston, cordate at the base, and usually attached to the rachis by a short stalk. The median nerve of the pinnule is distinct till near the end, where it breaks up into smaller dichotomous nervules ; similar nervules are given off from the sides of the median nerve throughout its length ; they leave the latter at an acute angle, and bend outwards to the margin (Fig. 161). The fronds recall those of some recent 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 Scott, Dukinfield Henry, 1854-1934. London, A. and C. Black
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