PLANTS FROM CALIFORNIA AND MONTANA. 177 



Some few of these are shown with httle distortion, and they resemble 

 those of Brachyphylhim ; that is, they are thick and rhombic in form, 

 with the greater dimensions transverse to the axis of the cone. Most of 

 them, however, are in this transverse direction so much elongated ancl 

 distorted that they appear as parallel raised lines. The mature cones 

 may be compared with the cone B. Moreauanum Brongn., as given by 

 Saporta in Paleontologie Frangaise, Plantes Jurassiques, Vol. Ill, pi. 

 xxxix, fig. 2. They are, however, broader than that, which may be due 

 to the distortion transverse to the axis of the cones. The cone scales 

 are larger than those of B. Moreauanum, and the species is probably 

 different. There are also, as stated, obscure bits of twigs, which appear 

 to belong to the same plant as that carrying the cones. They are mostly 

 decorticated, but a few show vague traces of leaf scars similar to those 

 of Brachyphyllum. 



The apparent strobiles are small cylindrical fragments with chaffy 

 scales. They probably belong to the plant that shows the larger mature 

 cones. There are several small elliptical to globose cones that are much 

 smaller than the mature ones. They apparently have the same kind of 

 cone scales as the larger cones, but smaller and thinner. These may be 

 immature cones of the plant carrying the larger cones, the male strobiles, 

 and the leafy twigs. 



Brachyphyllum is most developed in the Jurassic and Lower Creta- 

 ceous. If we may regard this plant as belonging to that genus, then, 

 so far as its evidence goes, the strata are Jurassic or Lower Cretaceous. 

 But as the generic place of the fossil can not be determined positively, 

 and the amount of material is so small, the age can not be certainly fixed. 



6. PLANTS FROM NORTHERN MONTANA. 



Sequoia Reichenbachi (Geinitz) Heer." 



PL XLV, Figs. 7, 8. 



This specimen was obtained by Dr. A. C. Peale from the east slope 



of the Bridger Range, north of Bridger Creek, Montana, and is labeled 



by Doctor Peale as Jurassic. Professor Ward gives as the more exact 



locahty 4 miles northeast of Bozeman, Mont., on the right bank of 



Bridger Creek. The fossil is a small bit of a twig 25 mm. long, with a 



a For the synonymy of this species see Nineteenth Ann. Rep. U. S. Geol. Surv., Pt. II, 1899, p. 674. 

 MON xLvm — 05 12 



