knowlton.] TERTIARY PLANTS OF NORTH AMERICA. 73 
Cladophlebis crenata Font. Potomac Fl., p. 75, pi. ix, f. 7-9; pi. x, 
f. 1, 2; pi. xiii, f, 1-3; pi. xix, f. 1; pi. xx, f. 6, 1889. 
Potomac formation : Fredericksburg, Brooke Station, and Potomac 
Run, Virginia. 
Cladophlebis denticulata Font. Potomac Fl., p. 71, pi. iv, f. 2; pi. 
vii, f. 7, 1889. 
Potomac formation : Fredericksburg and Potomac Run, Virginia. 
Cladophlebis distans Font. Potomac Fl., p. 77, pi. xiii, f. 4, 5, 1889. 
Potomac Fl. : Near Dutch Gap Canal, Virginia. 
Kootanie: Great Falls, Montana. 
Cladophlebis Dunkeri (Schimp.) Seward. Oat. Mesoz. PI. Brit. Mus. 
Wealden FL, pt. 1, p. 100, 1894. 
Pecopteris Dunkeri Schinip. Pal. V6g., vol. i, p. 539, 1869. 
Aspidiurn Duukeri (Schimp.) Font. Potomac Fl., p. 101, pi. xxii, f. 9; xxv, 
f. 11, 12; xxvi, f. 2, 8, 9, 18; liv, f. 3, 9, 1889. 
Potomac formation: Telegraph Station, Dutch Gap Canal, and 
Fredericksburg, Virginia. 
Knoxville beds : Tehama County, California. 
Cladophlebis falcata Font. Potomac Fl., p. 72, pi. iv, f. 8; pi. v, 
f. 1-6; vi, f. 7; pi. vii, f. 1, 2, 1889. 
Potomac formation : Fredericksburg, Virginia. 
Kootanie: Anthracite, British Columbia. 
Cladophlebis heterophylla Font. Proc. U. S. Nat. Mus., vol. xv, 
p. 493, pi. lxxxiv, f. 2, 1892. 
Kootanie: Great Falls, Montana. 
Cladophlebis inaequiloba Font. Potomac Fl., p. 80, pi. xxv, f. 8, 
1889. 
Potomac formation: Fredericksburg, Virginia. 
Cladophlebis inclinata Font. Potomac FL, p. 76, pi. x, f. 3, 4; pi. 
xx, f. 8, 1889. 
Potomac formation: Telegraph station, Virginia. 
Knoxville beds : Tehama County, California. 
Cladophlebis latifolia Font. Potomac Fl., p. 69, pi. iii, f. 1 ; pi. vi, f. 
4, 1889. 
Potomac formation: Baltimore, Maryland. 
Cladophlebis oblongifolia Font. Potomac Fl., p. 74, pi. vii, f. 3-5, 
1889. 
Potomac formation: Fredericksburg and Dutch Gap Canal, Vir- 
ginia. 
Cladophlebis pachyphylla Font. Potomac Fl., p. 80, pi. xxv, f. 9, 
1889. 
Potomac formation : Fredericksburg, Virginia. 
Cladophlebis parva Font. Potomac Fl., p. 73, pi. iv, f. 7; pi. vi, f. 
1-3, 1889. 
Potomac formation : Fredericksburg, Virginia. 
Kootanie: Great Falls, Montana. 
