knuwlton.] TERTIARY PLANTS OF NORTH AMERICA. Ill 
Ginkgo laramiensis Ward. Science, vol. v, p. 49(3, f. 7, 1885; Bull. 
IT. S. Geol. Surv., no. 37, p. 15, pi. i, f. 4, 1887. 
Montana formation : Point of Bocks, Wyoming. 
Ginkgo lepida Heer. Fl. Foss. Arct., vol. iv, abt. ii, p. 62, pi. xii; vii, 
f. 7, 1876. 
Salisburia (Gingko) lepida Heer. Dn., Trans. Roy. Soc. Canada, vol. iii, sec. 
iv, p. 8, pi. ii, f. 2, 1885 [1886] . 
Kootanie: Martin and Coal Creek, British Columbia. 
Ginkgo nana (Dn.) n. comb. 
Salisburia (Ginkgo) nana Dn. Trans. Roy. Soc. Canada, vol. iii, sec. iv, p. 
8, pi. ii, f. 3, 1885 [1886]. 
Kootanie: Coal Creek, British Columbia. 
Ginkgo pusilla (Dn.) n. comb. 
Salisburia pusilla Dn. Trans. Roy. Soc. Canada, vol. xi, sec. iv, p. 56, pi. vi, f. 
11-13,1893 [1894]. 
Upper Cretaceous : Port McNeill, Vancouver. 
Ginkgo sibirica Heer. Fl. Foss. Arct., vol. iv, abt. ii, p. 61, pi. vii, 
f. 6; ix, f. 5/; xi, 1876. 
Salisburia (Ginkgo) sibirica Heer. Dn., Trans. Roy. Soc. Canada, vol. iii, 
sec. iv, p. 8, pi. ii, f. 1, 1885 [1886]. 
Kootanie: Martin Creek, British Columbia. 
Ginkgo sp. 
Carpites myricarum Lx. Tert. Fl., p. 303, pi. Ix, f. 8-11, 1878. 
Laramie group: Black Buttes, Wyoming. 
Ginkgo sp. (Dn.) n. comb. 
Salisburia sp., Dn. Trans. Roy. Soc. Canada, vol. iii, sec. iv, p. IX, 1885 [1886]. 
Canadian Upper Laramie: Near Calgary, Canada. 
Ginkgo sp. 
Salisburia, nuts of, Dn. Trans. Roy. Soc. Canada, vol. iii, sec. iv, p. 9, pi. ii, 
f. 4, 1885 [1886]. 
Kootanie: Kootanie series, British Columbia (no locality). 
Ginkgo sp., Dn. Trans. Boy. Soc. Canada, vol. v, sec. iv, p. 33, 1887. 
[Wood.] 
Belly Biver series: South Saskatchewan; West of Medicine Hat. 
Ginkgo sp., Dn. Trans. Boy. Soc. Canada, vol. v, sec. iv, p. 34, 1887. 
[Wood.] 
Canadian Upper Laramie: Souris Biver, Mackenzie Biver. 
GLEDITSCHIA Clayton, ex Linnaeus. Gen., ed. ii, p. 480, 1742. 
Gleditschia triacanthos L. Lesquereux, Am. Journ. Sci., vol. xxvii, 
p. 365, 1859. 
Pleistocene : Banks of Mississippi Biver, near Columbus, Kentucky. 
GLEICHENIA Smith. Mem. Ac. Turin, vol. v, p. 418, 1791. 
Gleichenia Giesekiana ? Heer. Fl. Foss. Arct., vol. i, p. 78, pi. xliii, 
f. la, 2a, 'da, 1868; Fl. Amboy Clays, p. 36, pi. iv, f. 12, 1895 [1896]. 
Amboy clay: Woodbridge, New Jersey. 
Gleichenia gracilis Heer. Fl. Foss. Arct., vol. iii, abt. ii, p. 52, pi. x, 
f. 1-11, 1874; Dn., Trans. Koy. Soc. Canada, vol. iii, sec. iv, p. 11, pi. 
iii, f. 4, 1885 [1886]. 
Mill Creek series: Mill Creek. 
