knowlton.] TERTIARY PLANTS OF NORTH AMERICA. 81 
CYATHEITES Goppert. Syst. Fil. Foss., p. 319, 1836. 
Cyatheites? nebraskana (Heer) n. comb. 
Pecopteris nebraskana Heer. Saporta, Fl. Foss. d. Suzanne, p. 332, f. (in 
text) 8, 1868; Lx., Cret. FL, p. 46, pi. xxx, f. 12&, 1874. 
Dakota group : Kansas. 
CYC ADEOIDE A Buckland. Proc. Geol. Soc. London, vol. i, p. 80, 1827. 
Cycadeoidea Bibbinsi Ward. Proc. Biol. Soc. Wash., vol. xi, p. 15, 
1897. 
Potomac formation : Maryland. 
Cycadeoidea dacotensis (McBride) Ward. Proc. Biol. Soc. Wash., 
vol. ix, p. 86, 1894. 
Bennettites dacotensis McBride. Am. Geol., vol. xii, p. 249, pi. xi, f. 1, 2, 
1893; Bull. Lab. Nat. Hist. State Univ. of Iowa, vol. ii, p. 391, pi. xii, f. 
1, 2, 1893. 
Lower Cretaceous : Minnekahta Station, South Dakota. 
Cycadeoidea Fontaineana Ward. Proc. Biol. Soc. Wash., vol. xi, p. 
13, 1897. 
Potomac formation : Maryland. 
Cycadeoidea G-oucheriana Ward. Proc. Biol. Soc. Wash., vol. xi, 
p. 14, 1897. 
Potomac formation : Maryland. 
Cycadeoidea Jenneyana Ward. Proc. Biol. Soc. Wash., vol. ix, p. 
87, 1894. 
Lower Cretaceous: Near Bapid City, South Dakota. 
Cycadeoidea marylandica (Font.) Cap. and Solms. Mem. Real. 
Accad. Sci. 1st. Bologna, ser. v, torn, ii, p. 179, 180, 186, 1892; Ward, 
Proc. Biol. Soc. Wash., vol. ix, p. 86, 1894. 
Cycas sp., Tyson. First Rept. State Agric Chem. Md., p. 42, 1860. 
Bennettites sp., Car. Trans. Linn. Soc. Lond., vol. xxvi, p. 708, 1870. 
Cycadeoidea sp., Font. Am. Journ. Sci., vol. xvii, p. 157, 1879. 
Tysonia marylandica Font. Potomac FL, p. 193, pi. clxxiv-clxxx, 1889. 
Potomac formation : Maryland. 
Cycadeoidea McGeeana Ward. Proc. Biol. Soc. Wash., vol. xi, p. 
12, 1897. 
Potomac formation : Maryland. 
Cycadeoidea mirabilis (Lx.) Ward. Proc. Biol. Soc. Wash., vol. ix, 
p. 86, 1894. 
Zamiostrobus? mirabilis Lx. Bull. U. S. Geol. and Geogr. Surv. Terr., vol. i, 
2d ser., no. 5, p. 383, 1875 [1876] ; Tert. Fl. p. 70, pi. xliii, f. 1, 1878. 
Nelumbium James. Science, vol. iii, p. 434, 1884. 
Clathropodium mirabile (Lx.) Ward. Science, vol. iii, p. 532, 1884. 
Cycadeoidea Zamiostrobus Solms. Mem. Real. Accad. Sci. 1st. Bologna, ser. 
v, torn, ii, p. 210, 1892. 
Unknown: Golden, Colorado. 
Cycadeoidea munita Cragin. Bull. Washburn College Lab. Nat. 
Hist., Topeka, Kaus., vol. ii, p. 65, 1889. 
Lower Cretaceous: Belvidere, Kausas. 
Bull. 152- 6 
