194 PROCEEDINGS OF THE VATIONAL UUSEUM. vol.. 38. 



PODOZAMITES INjEQUILATERALIS ( Foniaine), new combination. 



Nageiopsis obtusifolia Fontaine," Monogr. U.S. Geol. Surv., No. !■">, I son, p. l'imi, 



pi. 85, fi*;. 7. Fontaine, in Ward, Monogr. I'. S. Geol. Surv., No. is. lime. 



p is I. 

 Nageiopsis insequilateralis Fontaine, Monogr. U. S. Geol. Surv., No. L5, L890, 



]>. i'oo. P l. 85, fig. 6. 

 Nageiopsis montanensis Fontaine, in Ward, Monogr. U. S. Geol. Surv.. No. 18, 



L906, p. 312, pl. 7:;, fig. 7. 



The 1 description of N. inasquilateralis is an alliteration of thai of 

 the preceding N. obtusifolia. It is based on a single specimen. 

 Veins arc twenty-two in number, much thicker than in Nageiopsis 

 and like those in X. acuminata, which has already been referred to 

 Podozamites. They converge toward the tip of the leaf, which is 

 missing in the specimen. Leaf pedicellate at base. 



N. montanensis, from the Kootanie at Geyser, Montana, is based 

 on a single detached leaflet with nineteen or twenty veins, convergent 

 in the obtuse tip. There is absolutely no ground for including it in 

 Nageiopsis. The insequilateralis specimen comes from Kankeys. 

 Virginia, and obtusifolia was found near Potomac linn and at Cockpit 

 Point, Virginia. 



These imperfect forms are suggestive of Podozamitep ajjinis (Schenk I 

 Schimper of the Wernsdorfer schichten, but are not representative 

 enough for accurate comparison. 



Occurrence. — Patuxent formation. Kankeys, Cockpit Point, 

 near Potomac Run, Virginia. Kootanie formation. Geyser, Mon- 

 tana. 



PHYLLITES LATIFOLIUS i Fontaine ', new combination. 



Nageiopsis lati/olia Fontaine, Monogr. I . S. Geol. Surv., No. 1">. L890, p. L98, 

 pl. 82, fig. 3. Fontaine, in Ward, Monogr. U. S. Geol. Surv., No. 18, L906, 

 p. 260, pl. lis. fig. L3. 



Description. "Leaves very broad and short, base and apex not 

 seen; leaf-substance thin; shape of Leaves probably broadly elliptical; 

 nerves not fully disclosed, but probably branching near the base; 

 they are then approximately parallel to near the apex, following the 

 margins, and parallel." Fontaine, 1890. 



This species was based on several detached leaves, from near Dutch 

 ( lap Canal and Potomac linn, none of w hie h show base, apex, general 

 form, or method of attachment, the mosl complete one found being 

 the one' figured. They present no characters which ally them to 

 Nageiopsis, from which they art 1 excluded by their deciduous nature. 

 The single specimen which Fontaine identifies as this species from 



oThe specific namer obtusifolia can not be used for a species of Podozamites, as, there 

 has been quasi use of this combination by Eeer: Bandl. ELongl. Sven. Vet. Akad. 

 (Fl. Foes. Am., vol. L pt. 1 1. L876, p 39, pl. 8, fig. (3. 



