MUSEUM OF COMPAKATIVE ZOOLOGY. 49 



of the three primary nerves and of the two lower secondary ones which come 

 out of the midrib very obliquely, far above the base of the primary nerves or 

 nearly in the middle of the leaf. The borders of the leaf are obtusely dentate 

 between the lobes, the teeth being short, turned outside, sej^arated by flat 

 sinuses. The leaf is 9 cm. long, 'ndthout the petiole, of which only 1 cm. is 

 preserved and 5 cm. broad in the middle, cuneiform to the base, decurring 

 under the primary nerves, and tapering upward in narrowing about in the 

 same degree. This fine leaf is apparently of the same kind as that in Newberry, 

 *' Illustrations," Plate XIII. fig. 1, named Populus nervosa, var. elongata. It 

 is however distinctly trilobate, and referable to Platanus, on account of the 

 decurring base of the leaves under the lateral primary nerves. 16 specimens. 



48. Populus Eaynoldsii, Newby. 23 specimens. 



49. Populus rhomboidea, Lx. 6 specimens. 



50. Populus, species undeterminable. 7 specimens. 



Urticaceae- — Ulmaceae. 



51. Ulmus quercifolia, Ung., Iconogr., p. 43, Plate XX. fig. 23. The speci- 

 men merely differs from the European species as figured by Unger in the 

 narrower more elongated base of the leaves. The borders are sharply dentate, 

 the lateral nerves distant, oblique, parallel from the base, passing in a curve 

 toward the borders, where they become effaced. 1 specimen. 



52. Ulmus antecedens, sp. nov. Leaves small, thickish, oblong-lanceolate, 

 acute, subcordate and subequilateral at base, doubly or triply dentate ; teeth 

 short, curved upward ; secondaries thick, parallel, strong and straight, gener- 

 ally simple, sometimes forking in the middle, with thick oblique nervdlles. 



The leaf has the same character as those of Ulmus crassifolia, of Texas. The 

 substance is thick, the size is the same, 4 cm. long, 2 cm. broad in the middle, 

 the widest part ; the lateral nerves 12 or 13 pairs. 1 specimen. 



Moreae. 



53. Ficus (Dombeyopsis) grandifolia, Ung. Considered by Schimper a syno- 

 nym of Ficus tilmfolia, Al. Br., differs by the coarser texture of the leaves and 

 the larger size. Of the leaves which represent this species, one, preserved en- 

 tire, is 15 cm. long from the base of the petiole, 18 cm. broad in the middle, 

 with the base prolonged downward into two auricles, descending 4 cm. lower 

 than the base of the medial nerve. 8 specimens. 



54. Ficus tilicefolia, Al. Br. 18 specimens. 



55. Ficus Bcrthoudi, sp. nov. Leaves thick and coarse, broadly cordate at 

 base, ovate-lanceolate, acuminate above, entire, enlai'ging toward the base and 

 rounding to the petiole, descending lower than its top, sometimes auriculate, 

 the basilar border in one leaf overlapping the top of the petiole ; primary 

 nerves deep and broad ; lower lateral nerves opposite, the upper alternate, all 

 very deeply curving toward the borders and following them in a series of 



VOL. XVI. — KO. 3. 4 



