1894. FBOCEEDIXGS OF THE NATIONAL MUSEUM. 23 1 



to Iiave been 10 cm. or more long niul G or 7 em. \yi(le. The smaller 

 examples appear to have been about 8 cm. in length and nearly or quite 

 8 cm. in width, as measured at the points of the lower lobes. As stated 

 above, they are 7 to 9 lobed, or, with two prominent lower lobes and a 

 central or terminal lobe, that is again i)rovided with 5 or 7 smaller lobes. 

 The leaves are deeply heart-shaped at base, with the lower lobes usually 

 at right angles to the midrib, or in some cases falling below, but rarely 

 rising above, a right angle. The upper secondaries, which all enter 

 lobes, so far as can be made out, arc at an angle of about 45°. They 

 are opposite or subopposite. The margin all around is i)rovided with 

 coarse, rather blunt teeth, which arc entered by the tertiaries or theii* 

 branches. 



I am unable at the present time to refer these leaves generically with 

 any degree of satisfaction. They have, it is true, a vague resemblance 

 to a considerable number of well-known genera, but when these are 

 carefully investigated the fossil leaves are excluded from them for one 

 cause or another. The leaf shown in fig. 11 is quite unlike the other 

 more typi<!al form, being less heart-shaped at base in having the lower 

 lobes at an angle of about 2()o, they being, also more pointed and with 

 smaller teeth; the general character, however, is the same. 



Figure 11 is very much like Acer trilobatam patens, Heer, Fl. Tert. 

 Helv., Ill, pi. oxiii, fig. II, but differs in the nervation, there being no 

 nerve running up to and forking under ihe principal sinuses, a well- 

 known character in Acer. The teeth also differ, as also does the termi- 

 nal lobe. 



It has been suggested that this may represent an extreme, or anom- 

 alous form of CorylHs MacQudrrii, a very variable species well known to 

 be common in arctic countries, esi)ecially Alaska. The base of the 

 larger specimen (fig. 10) does have a strong likeness to some of the 

 forms of this species, but the lobation is much more pronounced than I 

 have ever observed and, moreover, the borders are merely toothed and 

 not doubly serrate as are the niargins of C. MacQudrrii. 

 ■ It has been also suggested that it may belong to Vitis, and it has 

 something of a Vitis like appearance, but it does not appear to me to 

 approach close enough to any species of this genus known to me. I 

 have therefore adopted the non-committal name of Phyllites, and can 

 only express the hope that someone may be able to more satisfactorily 

 determine it. 



Herendeen Kay; Chas. H. Townsend. Type, No. 3700, U. S. N. M. 



