knowlton.] TERTIARY PLANTS OP NORTH AMERICA. 221 
SPEGAZZINITES Felix. Zeitschr. d. deutschen geol. Gesell. 1894, 
p. 279, 1894. 
Spegazzinites cruciformis Felix. Zeitschr. d. deutschen geol. 
Gesell., Jahr. 1894, p. 279, pi. xix, f. 8, 1894; op. cit., Jahr. 1896, p. 
255, 1896. 
Eocene : Yanceys, Yellowstone National Park. 
Sphyeria problematica Kn. = Sphaerites problematicus. 
SFH-ffiRITES Unger. Gen. et Sp. PI. Foss., p. 37, 1850. 
Sphaerites lapideus (Lx.) Mesch. = Eostelliniles lapideus. 
Sphaerites myricae (Lx.) Meschinelli. Syllog. Fung. Foss., p. 23, 1892. 
Spheria myricae Lx. Ann. Rept. U. S. Geol. and Geogr. Surv. Terr v p. 390, 
1872 [1873] ; Tert. Fl., p. 34, pi. i, f. 4, 1878. 
Green Eiver group: Green Eiver Station, Wyoming. 
Laramie group: Black Buttes, Wyoming. 
Sphaerites Lesquereuxi Meschinelli. Syllog. Fung. Foss., p. 31, 1892. 
Spheria rhytismoides Lx. [non Ett., 1869]. Bull. U. S. Geol. and Geogr. 
Surv. Terr., vol. i, p. 382, 1875 [1876] ; Ann. Rept. U. S. Geol. and Geogr. Surv. 
Terr., p. 308, 1874 [1876] ; Tert. Fl., p. 35, pi. i, f. 5, 5a, 1878. 
Laramie group : Black Buttes, Wyoming. 
Sphaerites problematicus Kn. 
Spiueria problematica Kn. in Lx. Fl. Dak. Gr., p. 23, pi. xxxi, f. 2, 2a, 1891. 
Dakota group : Kansas. 
SPHENOLEPIDIUM Heer. Fl. Foss. du Portugal, p. 19, 1881. 
Sphenolepidium dentifolium Font. Potomac FL, p. 258, pi. cxxvii, 
f.3,4; cxxviii,f.2-6; cxxix, f. 5; cxxx, f. 4-6, 10, 1889. 
Potomac formation : Fredericksburg, Virginia. 
Sphenolepidium Kurrianum (Dunk.) Heer. Fl. Foss. du Portugal, 
p.l9,pl.xii, Lib; xiii, f. lb, 86; xviii, f. 1-8, 1881 ; Font., Potomac Fl., 
p. 260, pi. cxxvi, f. 1, 5, 6 j cxxviii, f. 1, 7; cxxix, f. 1, 4, 6, 8; cxxx, f. 
11; cxxxi, f.4; clxvii, f. 2, 1889. 
Thuites (Cupressites?) Kurrianus Dunk. Monogr. Norddeutsch. Wealden- 
bildung., p. 20, pi. vii, f. 8, 1846. 
Potomac formation: Dutch Gap Canal, Fredericksburg, near 
Brooke, and near Telegraph Station, Virginia. 
Sphenolepidium pachyphyllum Font. Potomac Fl., p. 259, pi. cxxxi, 
f. 6, 7, 1889. 
Potomac formation: Near Telegraph Station, Virginia. 
Kootanie: Anthracite, British Columbia. 
Sphenolepidium parceramosum Font. Potomac FL, p. 257, pi. 
cxxix, f. 7; cxxx, f. 8; cxxxi, f. 2, 1889. 
Potomac formation : Fredericksburg and near Brooke, Virginia. 
Sphenolepidium recurvifolium Font. Potomac Fl., p. 258, pi. cxxvii, 
f. 2; cxxx, f. 2, 7, 1889. 
Potomac formation : Near Dutch Gap Canal, near Potomac Kun, 
and near Telegraph Station, Virginia. 
