no. 1821. REVISION OF POTOMAC PLANTS— BERRY. 299 



Heer 1 has described a leafy twig from the Patoot beds of Green- 

 land (Senonian) bearing a large solitary drupe-like fruit which he 

 calls Cephalotaxites insignis, an identification which Solms-Laubach 2 

 seems to consider probable. Bertrand 3 has described structural 

 material of fruits allied to Ceplialotaxus under the name of Vesquia 

 tournaisii from the Aachenian of Belgium, and the present writer has 

 described 4 similar fruits which are common in the Upper Cretaceous 

 of the southern Atlantic Coastal Plain. 



The existing genus Ceplialotaxus Siebold and Zuccarini, contains four 

 species confined to the Chinese- Japanese region. It was evidently much 

 more widespread in former geologic times, and to it should possibly be 

 referred some of the leafy twigs included in the genus Taxites Brong- 

 niart. Fruit of three species of Ceplialotaxus, apparently identified 

 correctly, are described by Kinkelin 5 from the Pliocene deposits of 

 Germany. 



CEPHALOTAXOPSIS MAGNIFOLIA Fontaine. 



Cephalotaxopsis magni/olia Fontaine, Monogr. U. S. Geol. Surv., vol. 15, 1S90, 

 p. 236, pi. 104, figs. 4, 5; pi. 105, figs. 1, 2, 4; pi. 106, figs. 1, 3; pi. 107, figs. 

 1, 2, 4; pi. 108, figs. 1, 3, 4. — Fontaine, in Diller and Stanton, Bull. Geol. 

 Soc. Amer., vol. 5, 1894, p. 450. — Fontaine, in Ward, 19th Ann. Rept. U. S. 

 Geol. Surv., Pt. 2, 1899, p. 686, pi. 162, fig. 16; pi. 169, figs. 3, 4. 



Cephalotaxopsis ramosa Fontaine, Monogr. U. S. Geol. Surv., vol. 15, 1890, p. 

 237, pi. 104, figs. 2, 3; pi. 106, figs. 2, 4; pi. 107, fig. 3; pi. 108, fig. 2.— Fon- 

 taine, in Ward, Monogr. U. S. Geol. Surv., vol. 48, 1906, p. 258(?), pi. 68, 

 figs. 5-7(?) (not p. 311, pi. 73, fig. 8, which is referred to Oleandra, or p. 547, 

 which is referred to Nageiopsis anguslifolia) . 



(?) Cephalotaxopsis ? rhytidodes Ward, Fontaine, in Ward, Monogr. U. S. Geol. 

 Surv., vol. 48, 1906, p. 258, pi. 68, fig. 8. 



(?)Cephalotaxopsis, species Fontaine, in Diller and Stanton, Bull. Geol. Soc. 

 Amer., vol. 5, 1894, p. 450. 



Description. — Branches very stout, more or less branched, in some 

 instances apparently in whorls through the suppression of the ter- 

 minal bud and the development of lateral shoots. Leaves distichous 

 in habit, but probably with a spiral phyllotaxis, strikingly similar to 

 those of the modern species of Ceplialotaxus, linear-lanceolate in out- 

 line, rather abruptly rounded at the base and tapering gradually 

 upward. Apex with a mucronate point. Length 2 cm. to 6 cm., 

 averaging 4 cm. or 5 cm. and becoming regularly smaller distally and 

 also smaller at the base of the new shoots. Width 3 mm. to 4 mm. 

 Texture coriaceous. The midrib is broad and flat, occupying about 

 one-seventeenth of the diameter of the leaf. The epidermal cells are 

 arranged in rows; they are small in size and thick-walled, quad- 

 rangular or slightly hexagonal in outline, ranging from proportions but 



i Heer, Flora Foss. Arct., vol. 7, 18S3, p. 10, pi. 53, fig. 12. 



2 Solms-Laubach, Fossil Botany, 1891, p. 01. 



s Bertrand Bull. soc. bot. France, vol. 30, 1SS3, p. 293. 



< Berry, Bull. Torrey Club, vol. 37, 1910, p. 187. 



6 Engelnardt and Kinkelin, Abh. Senckenb. Naturf . Gesell. vol. 39, Heft 3, 1908, p. 194, pi. 23, figs. 9, 13. 



