398 GEOLOG^ICAL SUEVEY OF THE TEREITOEIES. 



Ehamnus BISCOLOE, sy). nov. 



Leaves membranaceous, entire, round or ovate, narrowed into an 

 obtuse point, rounded to the short, thick petiole ; secondary veins simple,. 

 8 to 10 pairs. 



A fine species, with leaves varying in size from 2^ to 6 cent, oval, or 

 sometimes round, emarginate, or obtuse at the point; secondary veins 

 diverging 40 to 50^", curving in ascending to and along the borders 

 where they are united by strong nervilles ; always discolor, an indica- 

 tion that they were covered with a villosity, and either black on the 

 yellow surface of the leaves, or yellow upon the black ones, often split 

 in the length by maceration; nervilles distinct and distant. It has 

 some af&nity of nervation with Rliamnus brevifolius, Heer, Fl. Tert. 

 Helv., p. 78, PI. cxsiii. Fig. 27, for the curving of the veins along 

 the borders. The lowest x^air of veins join the medial nerve by a 

 downward (decurriug) curve. Closely allied by the form of the leaves 

 and the nervation to Rliamnus Furslmmus, D. C, now living in Oregon. 



JuGLANS Baltica (?), Hccr, Fl. Bait., p. 98, PI. xxix, Figs. 9 and 10. 



A fragment only, with the point and base broken. The form of the 

 leaf and its peculiar nervation refer it to this species. The leaf is of a 

 thin texture. 



JUGLANS EUGOSA, Lsqx. 



Eepresented by uncomplete but identifiable specimens. 



Caepouthes palmaeum, Lsqx. 



A few specimens of the same characters, form, and size as those 

 obtained at Golden. 



CAEPOLIXnES FALCATUS, SjJ. nOV. 



A small scythe-shaped frmit, attenuated at both ends, narrowly and 

 distinctly striate in the length, 2 cent, long, 4 mill, wide in the middle, 

 pointed at one end, blunt at the other. The relation of this species is 

 as yet unknown. 



Blacli Buite^ saurian hed. 



The station of this bed is about 150 feet higher in the measures than 

 the shale, with fossil-plants of the former section. The matter, embed- 

 ding ieaves, fragments of wood, of charcoal, ash, clay, fossil Cones and 

 shells all kneaded and mixed together, has been hardened by fire and 

 breaks with difficulty and in irregular fragments. It contains an aband- 

 ance of vegetable remains, mostly broken, however, and in a bad state 

 of preservation, 



Sabal Campbellit, Newb. 



In large specimens bearing, as elsewhere, the character of very narrow, 

 close, indistinct stri^ of the rays. 



