336 BULLETIN 53, UNITED STATES NATIONAL MUSEUM. 



26268. Trigonocarpum helenae David White. Type. 



Pottsville (Penn.). Helena, Alabama. 



White, Twentieth Ann. Rept. U. S. Geol. Surv., Pt. II, 1900, p. 909. 



See Rhabdocarpos clavatus. 



26999 Trigonocarpum kansaseanus Lesquereux. Types, 



to Missourian (Penn.). Osage, Kansas. 



27002. Lesquereux, Coal Flora, Second Geol. Surv. Pa., Rept. Prog. P, 



Text, III, 1884, p. 822. 



26982 Trigonocarpum perpusillus Lesquereux. Tj^pes. 



to Pennsylvanian. Stark County, Illinois. 



20905. Lesquereux, Coal Flora, Second Geol. Surv. Pa., Rept. Prog. P, 



Text, III, 1884, p. S20, pi. no, figs. 58, 59, 59a, 61. 



26006 Trigonocarpum schultzianus Goeppert and Berger. 



to Illustrated specimens. 



26008. Pennsylvanian. Stark County, Illinois. 



Lesquereux, Coal Flora, Second Geol. Surv. Pa., Rept. Prog. P, 

 Text, III, 1884, p. 819, pi. iro, figs. 63, 64, 65. 



26865 Trigoncarpum starkianus Lesquereux. Tj'pes. 



to Pennsylvanian. Stark County, Illinois. 



^"°7^- Lesquereux, Coal Flora, Second Geol. Surv. Pa., Rept. Prog. P, 



Text, III, 1884, p. 822, pi. in, figs. 7-13. 



Trigonocarpus. See Trigonocarpum. 



1295. Triphyllopteris alleghanensis Fontaine and I. C. White. 



Type. 

 Pocono (Miss.). Lewis Tunnel, West Virginia. 



Fontaine and White, Second Geol. Surv. Pa., Rept. P. Prog., 1880, 

 p. 6. 



See Cyclopteris CArchaeopteris) alleghanensis. 



2190. Triphyllopteris lescuriana (Meek) Lesquereux. Type. 



Pocono (Miss.). Lewis Tunnel, West Virginia. 



l/csquereux, Coal Flora, Second Geol. Surv. Pa., Rept. Prog. P, I, 

 1880, p. 297; Atlas, pi. 50, fig. 6. 



See Cyclopteris? (Archseopteris) lescuriana. 



2008. Triphyllopteris virginiana Meek. Type. 



Pocono (Miss.). Lewis Tunnel, West Virginia. 



Meek, Bull. Phil. Soc. Washington, II, 1875-1880; Appendix, p. 43. 

 See Cyclopteris virginiesis. 



16643. Trochophyllum clavatum Lesquereux. Type. 



Monongahela? (Penn.). Near Pittsburg, Pennsylvania. 



Lesquereux, Coal Flora, Second Geol. Surv. Pa., Rept. Prog. P, 

 Atlas, 1879, p. 2, pi. 3, figs. 21-23; Text, I, 1880, p. 65. 



= Sigillariostrobus clavatus. 



3435. Tumion falcatum (Fontaine) Knowlton. Type. 



Potomac (Low. Cret.). Hillside near Potomac Run, Vir- 

 ginia. 



Knowlton, Bull. No. 152, U. S. Geol. Surv., 1898, p. 234. 



See Torreya falcata. 



