JURASSIC FLORA OF DOUGLAS COUNTY, OREG. 129 



PL XXXIV, Fig. 13, shows three fragments which converge and 

 overlap at one end. Fig. 14 is from a pen drawing, natural size, which 

 shows the nervation more clearly. 



Order FINALES. 



Family TAXACEiE. 



Genus TAXITES Brongniart. 



Taxites zamioides (Leckenbj^) Seward. 



PI. XXXIV, Figs. 1,5-17; PI. XXXV, Figs. 1-3. 



1864. Cycadites zamioides Leek.: Quart. Journ. Geol. Soc. London, Vol. XX, p. 77, 



pi. viii, fig. 1. 

 1875. Taxites laxus Phill.: Geology of Yorkshire, 3d ed., p. 231, lign. 64 on p. 231, 



pi. vii, fig. 24. 

 1900. Taxites zamioides (Leek.) Sew.: Manchester Memoirs, Vol. XLIV, Pt. Ill, 



No. 8, p. 5; Jur. Fl. Yorksh. Coast, p. 300, pi. x, fig. 5. 



Leckenby described from the Oolite of Scarborough a small conifer- 

 ous branch which he named Cycadites zamioides." Seward calls this plant 

 Taxites zamioides. As the leaves narrow to the base like those of Taxus, 

 Seward is no doubt right in regarding the plant as a Taxites. There 

 are at some of the Oregon localities numerous imprints of leaves exactly 

 like those of this plant. In most cases they are detached, and sometimes 

 they thickly cover the surface of the rock. In one case they were found 

 attached, as in Taxus. The leaves are small but have a thick leather- 

 like texture. They are about 4 cm. long and 1.5-2 mm. wide. They 

 taper gradually to a subacute tip, and at base are abruptly rounded off 

 and attached by a very short twisted petiole. The midnerve is very 

 slender, but is sharply defined. 



PL XXXIV, Figs. 15 and 16 (enlarged) give a portion of a twig with 

 several attached leaves. Fig. 17 shows a number of detached leaves. 



PL XXXV, Fig. 1 depicts several nearly entire leaves. Some of these 

 are shown enlarged in Fig. 2. The specimen represented in Fig. 3 pre- 

 sents the appearance of a portion of rock covered with detached leaves. 



The leaves are most common at locality No. 19 and are found also 

 at localities Nos. 1, 7, 17, and 18. 



« On the sandstones and shales of the Oolites of Scarborough, by John Leckenb}-: Quart. Journ. Geol. 

 Soc. London, Vol. XX, p. 77, pi. viii, fig. 1. 



MON XLVIII — 05 9 



