20 
Order, Aristolochiales 
Family, Aristolochiaceae 
Genus, Aristolochia Linn^ 
Aristolochia crassifolia Cockerell 
Plate VI, figures 1-3 (| natural size) 
Caialpa crassifolia Newberry, N.Y. Lyc. Nat. Hist., Ann., vol. 9, 1868’ 
p. 56; [Lesquereux], U.S. Geol. and Geog. Surv., Terr., 111., Cret. and 
Tert. PL, 1878, PI. xxii; Penhallow, Kept. Tert. PI. Brit. Col., 1908, 
p. 44. 
Aristolochia cordifolia Newberry, N.Y. Lyc. Nat. Hist., Ann., vol. 9, 1868, 
p. 74; [Lesquereux], U.S. Geol. and Geog. Surv., Terr., Hi., Cret. and 
Tert. PL, 1878, PL xxv, fig. 7; Newberry, U.S. Geol. Surv., Mon. 35, 
1898, p. 90, PL xxxix; PL xl, -fig. 7; PL lx, fig. 4. 
Aristolochia crassifolia Cockerell, Am. Mus. Nat. Hist., Bull., voL 24, 
1908, p. 90. 
Cocculus haydenianus Ward, U.S. Geol. Surv., Sixth Ann. Kept., p. 556, 
PL 59, figs. 1-5, 1886; Bull. 37, p. 100, PL 47, figs. 1-4; PL 48, fig. 1, 
1887; Knowlton, Wash. Acad. Sci., Proc., vol. 11, pp. 189, 198, 200, 
213, 215, 1909. 
Cehatha haydenianus Knowlton, U.S. Geol. Surv., Bull. 152, p. 62, 1898. 
Whatever may be thought of the generic relations of this plant there 
is no doubt that the material which Ward referred to Cocculus is identical 
with what Newberry referred successively to Catalpa and Aristolochia. 
It is obviously not a Catalpa and after comparisons I believe it to represent 
Aristolochia. This was Ward’s original idea, subsequently abandoned in 
favour of Cocculus. A feature not shown in Newberry’s types but empha- 
sized by Ward in connexion with what he called Cocculus haydenianus 
is the “marginal vein or hem” for which Ward coined the term parypho- 
drome. This is present in the Canadian material and is nothing but the 
flattened arches of the ultimate areolation. The species occur abundantly 
in the Lance, Fort Union, and Paskapoo formations and highly character- 
istic, but usually much broken remains are not uncommon in the Ravens- 
crag beds at Kavenscrag butte, near centre of sec. 27, tp. 6, range 23, 
W. 3rd mer. 
Order, Ranales 
Family, trochodendeaceae 
Genus, Trochodendroides Berry 
This term is used as a form genus for fossil representatives of the 
family Trochodendraceae and not as implying any direct relationship to 
the genus Trochodendron. 
Trochodendroides cuneata (Newberry) 
Plate V, figures 2, 3 
Populus cuneata Newberry, N.Y. Lyc. Nat. Hist., Ann., vol. 9, 1868, p, 64; 
Ward, U.S. Geol. Surv., Mon, 35, 1898, p. 41, PL xxviii, figs. 2-4; 
PL xxix, fig. 7; U.S. Geol. Surv., Sixth Ann. Kept.; 1884-85 [1886], 
