218 MESOZOIC FLOKAS OF UNlTP:i) STATES. 



obsciire vegetable impressions at five points, designated on his labels as 

 follows in their i-elation to Pettyjohn's ranch: 1, about 3 miles a little 

 west of north: 2, about '.i\ miles a little west of north; 3, 2 miles below 

 (southeast?); 4, li miles north; 5, l-i miles northeast. Nos. 3 and 4 

 are on the Cold Fork of Cottonwood Creek, No. 4 being in the canyon; 

 No. 5 is on the trail. None of the specimens bear any close resemblance 

 to that obtained by Mr. Thompson, and the presumption is that the 

 exact locality was not found. 



These specimens were sent to Professor Fontaine on Feljruary 16, 

 1903, and his report upon them was received on March 10. It is as 

 follows : 



I have carefully examined the fossil plants collected by Dr. Stanton from the 

 vicinity of Pettyjohn's ranch, Tehama County, Cal. The collections unfortunately 

 show nothing that can be positively determined. Most of the specimens can not be 

 even generically determined. Many of them are vague imprints of stems or small 

 scraps of leaves with none of the original form preserved. The best specimens do 

 not show enough to give any idea of the true character of the plants. The following 

 are the collections now in question : 



Collection No. 1, as designated above. — This was obtained from a locality about 

 3 miles a little west of north from Pettyjohn's rancli. It contains 6 specimens, none 

 of which are even approximately determinable. The most that can be made out is 

 that they are fragments of plants. 



Collection No. 2. — This comes from about .SJ miles northwest of Pettyjohn's 

 ranch, several hundred feet above No. 1. It has only :> specimens. Onlj^ 1 of these 

 can be even approximately determined. It is the basal portion of a dicotyledonous 

 leaf that resembles Celastrophyllum hroolcense Font., from the Aquia Creek beds of 

 the Lower Potomac of Virginia. It resembles also Ficus atavina Heer, from the 

 Atane beds of Greenland. There is not enough of the fo.ssil to determine its true 

 character. 



Collection No. 3. — This collection has 12 specimens. None of these seem to be 

 dicotyledons. The fossils come from the Cold Fork of Cottonwood Creek, about 2 

 mUes below Pettyjohn's ranch. Seven of the specimens show only vague scraps of 

 plants. Five of them have each a small portion of an ultimate pinna of some fern 

 that shows onlj^ a few poorly preserved pinnules of the type of Thyrsopteris rariner- 

 vis Font, or Asplenium Diclsonianum Heer. They all apparently belong to the 

 same species. It may be either of the two forms mentioned above, for the mate- 

 rial does not suffice to determine the ([uestion. The former of these occurs in the 

 Lower Potomac and the latter ranges from the Kome strata of Greenland to the 

 Atane of the same region. 



Collection No. 4. — This comes from the canyon of the Cold Fork of Cottonwood 

 Creek, li miles north of Pettyjohn's ranch. It is the largest of the collections and 



