Maryland Geological Survey 433 



Sphenolepidium parceramosum Fontaine, 1890, Mon. U. S. Geol. Surv., vol. 



XV, 1889, p. 257, pi. cxxix, fig. 7; pi. cxxx, fig. 8; pi. cxxxl, fig. 2. 

 Arthrotaxopsis grandis Fontaine, 1890, Mon. U. S. Geol. Surv., vol. xv, 



1889, p. 240 (pars). 

 Sphenolepidium virginicum Fontaine, 1890, Mon. U. S. Geol. Surv., vol. xv, 



1889, p. 259, pi. cxxv, fig. 4; pi. clxvi, fig. 6. 

 Arthrotaxopsis expansa Fontaine, 1890, Mon. U. S. Geol. Surv., vol. xv, 



1889, p. 241 (pars), pi. cxxxv, figs. 15, 18, 22. 

 Taxodium (Glyptostrohus) expansum Fontaine, 1890, Mon. U. S. Geol. Surv., 



vol. XV, 1889, p. 252, pi. cxxiii, fig. 1. 

 Taxodium (OlyptostrohusJ denticulatum Fontaine, 1890, Mon. U. S. Geol. 



Surv., vol. XV, 1889, p. 253, pi. cxxiv, fig. 1. 

 Taxodium (Glyptostrohus) fastigiatum Fontaine, 1890, Mon. U. S. Geol. 



Surv., vol. XV, 1889, p. 253, pi. cxxv, figs. 1, 3. 

 Sphenolepidium Kurrianum Saporta, 1894, Fl. Foss. Port., pp. 115, 139, pi. 



xxii, figs. 3-5; pi. xxvii, fig. 15. 

 Sphenolepidium Kurrianum Seward, 1895, Wealden FL, pt. ii, p. 200, pi. 



xvii, figs. 7, 8; pi. xviii, fig. 1. 

 Olyptostrohus fastigiatus Ward, 1895, IStti Ann. Rept. U. S. Geol. Surv., 



p. 380. 

 Sphenolepidium Kurrianum Kerner, 1896, Jahrb. k. k. geol. Reichs., Band 



xlv. Heft i, p. 51, pi. iv, fig. 2. 

 Sphenolepidium Kurrianum Fontaine, 1899, in "Ward, 19tli Ann. Rept. U. S. 



Geol. Surv., pt. ii, p. 681, pi. clxvi, figs. 12, 13. 

 Sphenolepidium parceramosum Fontaine, 1899, in Ward, 19th. Ann. Rept. 



U. S. Geol. Surv., pt. ii, p. 682, pi. clxiii, fig. lib; pi. clxviii, figs. 1-3. 

 OlyptostroMis hrooJcensis Fontaine, 1899, in Ward, 19tli Ann. Rept. U. S. 



Geol. Surv., pt. ii, p. 682, pi. clxv, fig. 4; pi. clxviii, fig. 4. 

 Sphenolepidium Kurrianum Fontaine, 1906, in Ward, Mon. U. S. Geol. 



Surv., vol. xlviii, 1905, pp. 484, 489, 519, 538, 543. 

 Sphenolepidium parceramosum Fontaine, 1906, in Ward, Mon. U. S. Geol. 



Surv., vol. xlviii, 1905, pp. 484, 538, 548. 

 Sphenolepidium virginicum Fontaine, 1906, in Ward, Mon. U. S. Geol. Surv., 



vol. xlviii, 1905, pp. 481, 484, 517. 

 Glyptostrotus expansus Ward, 1906, in Fontaine, Mon. U. S. Geol. Surv., 



vol. xlviii, 1905, p. 543. 

 Sphenolepis Kurriana Berry, 1911, Proc. U. S. Natl. Mus., vol. xl, p. 291. 



Description. — " Thuites ramulis erectis irregulariter pinnatis, compres- 

 smsculis "utrimque subcarinatis, foliolis crassiusculis imbricatis irregu- 

 lariter dispositis elongatis subflexuosis apice acutis clorso carinatis sub- 

 distantibus." — Dunker, 1846. 



In habit the twigs are alternate, branching copious!}', more or less 

 crowded, with a tendency toward a fastigiate arrangement in numerous 



