. Bulletin - United States National Museum. Science. '.?'?x '>>/ f*^.. Figs. 1-7.— 1, Dendkograptus dawsoni Spencer. A feond natural size and a branch ENLARGED ; 2, D. DUBIUS MILLER ; 3, D. RAXIOSUS SPENCER. A FROND WITH A BRANCH enlarged; 4, D. praegracilis Spencee ; 5, D. spinosds Spencer; 6, D. ? problemat- icus Spencer; 7, D. frondosis A frond natural size branch en- larged. (Copied Spencer.) together, and parallel, while the branches of the third are narrow at their origin, but widen uniformly to their bifurcations or free ends. DENDROGRAPTUS DAWSONI Spencer. Te
. Bulletin - United States National Museum. Science. '.?'?x '>>/ f*^.. Figs. 1-7.— 1, Dendkograptus dawsoni Spencer. A feond natural size and a branch ENLARGED ; 2, D. DUBIUS MILLER ; 3, D. RAXIOSUS SPENCER. A FROND WITH A BRANCH enlarged; 4, D. praegracilis Spencee ; 5, D. spinosds Spencer; 6, D. ? problemat- icus Spencer; 7, D. frondosis A frond natural size branch en- larged. (Copied Spencer.) together, and parallel, while the branches of the third are narrow at their origin, but widen uniformly to their bifurcations or free ends. DENDROGRAPTUS DAWSONI Spencer. Text figure 1. Dendrograptus daicsoni Spencer, Can. Nat., X, 1,S82, p. 105. nomen nufJum; Trans. Acad. Sci. St. Louis, IV, 1884, pp. 564, 568. pi. 1, fig. 5; Bull. Mus. Univ. State Missouri, No. 1, 1884, pp. 14, 18, pi. 1, fig. 5.—Miller, North Amer. Geol. and Pal., 1889, p. 184.—Gurley, Jouru. Geol., IV, 1896, pp. 94, 308. Doctor Spencer's description is as follows: Frond erect and treelike. Stipe short, hut extending upward and dividmg into two or three principal branches, (.'ach bifurcating twice or thrice, and at 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 United States National Museum; Smithsonian Institution; United States. Dept. of the Interior. Washington : Smithsonian Institution Press, [etc. ]; for sale by the Supt. of Docs. , U. S. Govt Print. Off.
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