336 



SHORTER CONTRIBUTIONS TO GENERAL GEOLOGY, 1016. 



meters long, from some portion of th(! blade 

 showing the petiole, or its prolongation, and the 

 attachment of numerous rays. It appears to 

 be from the under side i)f the leaf, but it is 

 impossible to detemiine the huigth of this pro- 

 longation of the petiole or to estimate the num- 

 ber of rays with anj- degi-ee of accuracy. It 

 seems to belong to what has been named Sahal 

 montana, as based on a considerable number of 

 examples rather widt^ly scattered through the 

 several Montana localities, but on the other 

 hand it is hardly to be distinguished from 

 Geonomites ungeri Lesquereux,' a species sup- 

 posed to bo confined to the Raton and allied 

 Eocene formations. Geonomites ungeri was 

 established on a mere fragment from the middle 

 of a leaf that was obviously of considerable size, 

 and there is no means of knowbig tlie size and 

 configuration of the petiole, the numbiu- of rays, 

 etc., and consequently there is no way to com- 

 pare it with leaves referred to Sabal montana, 

 in wliich these features are known. However, 

 imtil more defijiite information is available 

 the San Juan specimen may stand as Sahal 

 montana f . 



Occurrence: Fruitland formation, 18 miles 

 south of San Juan River and 4 miles east of 

 Chaco River, San Juan County, N. Mex. 

 Lot 28 (6961). 



Sabal? sp. 



Plate LXXXV, figure 1. 



The specimen here figured is the only one of 

 its kind observed in the collections. It is a 

 mere fragment from what apparently was a 

 very large leaf, but it lacks so many essential 

 features that it has seemed unwise to give it a 

 specific name. When compared with the 

 specimen figured as Sabal montana? it is seen 

 to be very difl^erent, the pj-olongation of the 

 racliis being especially strong and the rays very 

 large at the point of their attaclmient. But the 

 size of the leaf, the length of the rachis, and the 

 munber and configuration of the rays are un- 

 known, and this fragment simply serves to call 

 attention to the presence in these beds of a 

 large palm. 



OccuiTcnco: Fmitland formation, just across 

 San Juan River from Fruitland, aljout half a 

 mile above the bridge, San Jiiaii County, 

 N. Mex. Lot 3 (6957). 



1 Lesquerexix, Leo, U. S. GeoL Survey Terr. Rept., vol. 7, p. lis, pi. 

 11, fig. 2, 1878. 



Family MYRICACEffi. 

 Myrica torreyi Lesquereux. 



Plate LXXXVI, figure 1. 



Myrica torreyi Lesquereux, U. S. Geol. and Geog. Survey 



Terr. Sixth Ann. Rept., for 1872, p. 392 [1873]; 



U. S. Geol. Survey Terr. Rept., vol. 7, p. 129, 



pi. 16, figs. 3-10, 1878. 

 Ward, U. S. Geol. Survey Sixth Ann. Rept., p. 551, 



pi. 40, fig. 4, 1886; Bull. 37, p. 32, pi. 14, fig. 5, 1887. 

 Kuowlton, U. S. Geol. Survey Bull. 163, p. ,34, 



pi. G, figs. 1-3, 1900. 

 Cockerell, Colorado Univ. Studies, vol. 7, p. 150, 1910. 



Only a few fragments of this species were 

 found, but it is so well marked that these are 

 sufficient to attest its presence in these beds. 



Occurrence: Fruitland formation, 30 miles 

 south of Farmington and 1 mile east of reserva- 

 tion line, San Juan County, N. Mex. Lot 75 

 (6956). 



Myrica? neomexicana Knowlton, n. sp. 



Plate LXXXVI, figures 2-1. 



Leaves small, deltoid in general outUne, 

 apparently truncate at the base and obtusely 

 pointed at the apex; with at least 9 and 

 probably as many as 11 or 13 lobes, the basal 

 pair cut deeply or nearly to the midrib, be- 

 conung almost separate, others only shghtly 

 cut and in upper portion probably reduced to 

 merely strong undulations; lobes obtuse, entire 

 or more commonly strongly and obtusely 

 toothed; nervation pinnate, the michib being 

 relatively strong; secondaries as many as the 

 lobes, at a low angle of emergence, craspedo- 

 dronie, ending in the lobes; finer nervation 

 abundant and very irregular. 



Although there are several specimens that 

 obviously belong together they are so frag- 

 mentary that the species is very inadequately 

 represented. It is roughly triangular or del- 

 toid, and was at least 4 centuncters in length 

 and very probably was considerably longer. 

 The width at base was certainly over 4 centi- 

 meters, and if there was an adcUtional free or 

 nearly free lobe, its width must have been 6 

 centimeters or more. 



Three specimens have been figured. In 

 that shown in figure 3 the lobes are nearly 

 or quite entire, but in the somewhat larger leaf 

 shown in figure 2 the lobes are irregularly 

 and obtusely toothed. The specimen shown 

 in figure 4 is evidently the basal lobe of the 

 leaf, but M'hcther it belonged to a larger leaf 



