No. 1738. Fossil PLANTS OF TEE GENUS NAOEIOPSIS— BERRY. 189 



NAGEIOPSIS LONGIFOLIA Fontaine." 



Nageiopsis longi/olia Fontaine, Monogr. U. S. Geol. Surv., No. L5, L890, p. 



195, pi. 75, fig. 1; pi. 76, figs. 2-6; pi. 77, figs. 1, 2; pi. 78, figs. L-5; pi. 79, 



fig. 7; pi. 85, figs. I, 2, 8, 9.—? Fontaine, in Diller and Stanton, Bull. Geol. 



Soc. Amer., vol. 5, L894, p. 150.—? Fontaine, in Stanton, Bull. L33, I'. S. 



Geol. Surv., 1896, p. 15. — Fontaine, in Ward, Monogr. U. S. Geol. Surv., 



No. IS, 1905, pp. 259, 311, 484, 491, 510, 528, 548, 557; pi. 68, figs. 9-12; 



pi. 73, fig. 9 (not pi. 45, figs. 1-5). — ? Knowlton, in Diller, Bull. Geol. 



Soc. Amor., vol. 19, 1908, ]>. 386. 

 Angiopteridium strictinerve Fontaine ? in Diller and Stanton, Bull. Geol. Soc 



Amer., vol. 5, 1894, p. 150. — Fontaine, in Stanton, Hull. 133, U. S. Geol. 



Surv., 1896, p. 15. 

 Nageiopsis crassicaulis Fontaine, Monogr. U. S. Geol. Surv., No. 15, 1890, p. 



198, pi. 79, figs. 2, fi; pi. 82, fig. 1; pi. 84, figs. 3, 9, 11. 



Description. — Branching leafy twigs of large size, stout and thick, 

 apparently branched in approximately one plane. Leaves linear- 

 lanceolate, often slightly curved, somewhat inequilaterally narrowed 



into a short slightly twisted petiole; above gradually narrowed to 

 the acute or subacute tip. Length, 8 to 20 cm.; width, 5 mm. to 

 1.3 cm. The leaves are not crowded ami usually appear opposite 

 or subopposite, as if inserted on the lateral margins of the stem, 

 although at times they seem to be attached to its upper or lower 

 side. As previously remarked, none of the material is conclusive 

 in regard to the phyllotaxy. Veins nine to twelve in number, 

 usually ten, forking only at the base and running parallel until 

 they abut against the leaf margin, about 0.7 mm. apart, somewhat 

 coarser in caliber than in the other members of the genus, distinct 

 on both surfaces of the lamina and apparently not immersed. Leaf 

 substance not coriaceous. 



This species is quite distinct from its congeners, and the great 

 development of its evergreen foliage must have rendered it a most 

 striking object in life. 



Included under this species are the few and rather poor remains 

 upon which Fontaine founded Nageiopsis crassicaulis. All but one 

 of the specimens which that author so names are fragments of de- 

 tached leaflets, somewhat shorter and broader than the typical 

 leaves of Nageiopsis longifolia, but absolutely uncharacteristic and 

 incapable of identification. The specimen with leaves attached is 

 obviously a poorly preserved fragment of a twig of Nageiopsis 

 longi fol ia . 



This species occurs abundantly in characteristic and fine specimens 

 at Fredericksburg. It has also been recorded from a large number 



a Iritrs alashana Lesquereux is made a synonym of this species in Monograph 48. 

 According to the principles so often set forth by Professor Ward, this species should 

 be renamed if hites alaskana is included in it, since the latter was published three 

 years before; Xageiopsis longifolia. As the Alaska remains are not those of a Xagei- 

 opsis this name is omitted from the synonymy. 



