230 SYSTEMATIC PALEONTOLOGY . 
Alask, pl. v, fig. 2; ibid., vol. ii, Foss. Fl. N. Greenl. pl. xlv, figs. 5a, ¢ 
and xlvi, figs. 6, Ya; ibid., vol. v, Foss. Fl. Sibiriens pl. xv, fig. 19; ibid., 
vol. v, Mioc. Fl. Sachalin, pl. ix, fig. 10 and x, figs. 1, 2; ibid., vol. Vil, 
pls. lxxv, fig. 11, Ixxxix, fig. 9, xcii, fig. 9, xev, figs. 6, 7 and xcvii, fig. 
3; Lesq. Tert. Fl., pl. xxvii, fig. 7, etc.) Figure 14 might also be com- 
pared with Ulmus minuta Gepp. (Zeitsch. Deutsch. Geol. Gesellsch., vol. 
iv, p. 492; Tert. Fl. Schossnitz, p. 31, pl. xiv, figs. 12-14), but it would 
seem to be the wiser course not to separate this mere fragment from the 
other with which it is associated. 
Occurrence.—SUNDERLAND Formation. Near the headwaters of Is- 
land Creek, Calvert County. 
Collections—Maryland Geological Survey. 
Genus CELTIS Linne. 
CELTIS PSEUDO-ORASSIFOLIA Nn. sp. 
Plate LXXI, Fig. 9. 
Description.—Leaf about 14 inch long by ? inch wide, inequilateral ( ?) 
sparingly dentate below, entire above and tapering irregularly to the apex; 
secondary nervation camptodrome, consisting of a pair springing from 
the base and three or more above, which bend abruptly near the midrib 
and extend upward almost parallel with it; tertiary nervation approxi- 
mately at right angles between the secondaries and between the second- 
aries and the midrib, curving upward from the outside of the basal second- 
aries, where they connect close to the margin, with fine sub-divisions €X- 
tending to the dentiticns. 
It is unfortunate that only this fragmentary specimen was obtained 
upon which to base a description. It is apparently closely related to sev- 
eral living species, such as C. crassifolia Lam., C. mississippiensis ase 
C. georgiana Small, and ©. occidentalis L., in all of which the leaves may 
es Rosaria in ties beens and — of dentition and with any 
satisfactorily than with any de 
is therefore indicated 
hip 
