TYPE SPECIMENS OF FOSSIL PLANTS. 109 



3374. Aspidium cystopteroides Fontaine. Type. 



Potomac (Low. Cret.). Fredericksburg, Virginia. 



Fontaine, Mon. XV, U. vS. GeoL vSurv., 1889, p. 99, pi. 16, fig. 2. 

 = Dryopteri.s cystopteroides. 



3437. Aspidium dentatum Fontaine. Type. 



Potomac (Low. Cret.). Hillside near Potomac Run (Fred- 

 ericksburg area), Virginia. 



Fontaine, Mon. XV, U. vS. GeoL Surv., 1889, p. 102, pL 25, figs. 



6, 7, 14, 15. 



= Dryopteris dentata. 



3391. Aspidium dunkeri (Schimper) Fontaine., 



3324. Illustrated specimens. 

 3828. Potomac (Low. Cret.). Near telegraph station, banks 



Dutch Gap Canal; Fredericksburg; entrance to Trent's 

 Reach; fishing hut above Dutch Gap Canal, Virginia. 



Fontaine, Mon. XV, U. vS. GeoL Surv., 1889, p. loi, pL 22, fig. 9; 

 pL 25, figs. II, 12; pi. 26, figs. 2, 8, 9, 18; pi. 54, figs. 3, 9. 



= Cladophlebis dunkeri. 



3993. Aspidium dunkeri (Schimper) Fontaine? Supplemental tjpe. 

 Shasta (Low. Cret.). Near Lowrey, Tehama County, Cali- 

 fornia. 



Fontaine in Diller and vSlanton, Bull. GeoL Soc. Amer., V, 1894, p. 

 450; in Stanton, Bull. No. 133, L^. S. GeoL Surv., 1895, p. 15. 



= Cladophlebis ungeri. 



3967. Aspidium ellipticum Fontaine. Type. 



Potomac (Low. Cret.). Hillside near Potomac Run; bank 

 near Brooke, Virginia. 

 Fontaine, Mon. XV, U. vS. GeoL vSurv., 1889, p. 95, pi. 13, figs. 9, 10. 

 = Dryopteris elliptica. 



3913. Aspidium fredericksburgense Fontaine. Type. 



3346. Potomac (Low. Cret.). Fredericksburg; and near tele- 



3325. graph station (Fredericksburg area), Virginia. 



Fontaine, Mon. XV, U. S. GeoL Surv., 1889, p. 94, pi. 11, figs. 1-6; 

 pi. 12, figs. 1-6; pi. 16, fig. 9; pi. 19, figs. 6, 7. 



= Dryopteris frederick.sburgense. 



26. Aspidium goldianum Lesquereux. Type. 



Laramie (Cret.). Golden, Colorado. 



Lesquereux, Rept. U. S. GeoL and Geogr. Surv. Terr., 1873 [1874], 



P- 393- 

 = Lastrea goldiana. 



3268. Aspidium heterophyllum Fontaine. Type. 



Potomac (Low. Cret.). Fredericksburg, Virginia. 



Fontaine, Mon. XV, U. S. GeoL Surv., 18S9, p. 96, pi. 14, figs. 1-5; 

 pi. 15, figs. 1-5. 



= Dryopteris heterophylla. 



