. Studies in fossil botany . Paleobotany. 238 STUDIES IN FOSSIL BOTANY the appendages, which are often found in situ, radiating out in all directions, and forming approximately a right angle with the main axis (see Fig. 97). The appen- dages have been found to reach a length of 12 or 15 inches ; they have a nearly cylindrical, but gradually tapering form, and are slightly constricted at the base. Their dimensions are small compared with those of the. Fig. 97.—Stigmaria ficoides. Part of surface, showing the rootlet-scars (/<:) to some of which the rootlets (rf) are still attached. Reduced.
. Studies in fossil botany . Paleobotany. 238 STUDIES IN FOSSIL BOTANY the appendages, which are often found in situ, radiating out in all directions, and forming approximately a right angle with the main axis (see Fig. 97). The appen- dages have been found to reach a length of 12 or 15 inches ; they have a nearly cylindrical, but gradually tapering form, and are slightly constricted at the base. Their dimensions are small compared with those of the. Fig. 97.—Stigmaria ficoides. Part of surface, showing the rootlet-scars (/<:) to some of which the rootlets (rf) are still attached. Reduced. After Schimper. main axis, scarcely reaching a diameter of half an inch, while they are often quite slender. The main Stigmariae themselves attained an immense length; one was traced by the late Prof. W. C. Williamson for a distance of 37 feet 4 inches from its base ; in this length it twice forked, but the only branch which could be followed to its full extent measured about 28 feet, from the second dichotomy to its end. At the base of the whole, the diameter was no less than 32 inches, which diminished to a mere point at the extremity of the. 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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