368 OLDER MESOZOIC FLORAS OF UNITED STATES. 
this be correct, we may regard the fossils showing Rhetic affinities as 
survivors.’ 
THE JURASSIC FLORA OF OREGON. 
As far back as 1872 and in subsequent years, Mr. Aurelius Todd, a 
mining engineer, then living in Oregon, now a resident of Florida, 
while prospecting among the mountains of Douglas County, Oregon, 
made collections of fossils from numerous points, and among these 
were many fossil plants. Some of the latter were collected on Buck 
Mountain, which forms part of the watershed between Cow Creek and 
Lookingglass Creek, two principal tributaries of the South Fork of 
the Umpqua River. Buck Mountain is about 8 miles nearly due west 
of the town of Riddles. It has an altitude of about 3,500 feet above 
the level of the sea, and rises 2,000 feet above the beds of the streams 
that flow along its base. On the west side, flowing north, is Olalla 
Creek, a tributary of Lookingglass Creek. A branch of this, locally 
called Thomson Creek, but named Hunter Creek on the Land Office 
1 The careful reader of this paper who may be acquainted with Professor Fontaine’s brief report on 
the first collection from Oroville made by Dr. Stanton’s party as above set forth (see Journal of Geology, 
Vol. III, pp. 395-396) may observe that Professor Fontaine does not explain specifically the changes 
made in his determinations, but only states that the new and more abundant collections required 
the conclusions drawn from the early small collection to be modified and extended. It is, therefore, 
perhaps worth while to attempt to clear the matter up at this time lest some one might ascribe to the 
Oroville florula species mentioned in the first report that have not as yet really been found there. 
The only such species as to which Professor Fontaine spoke with any degree of confidence are the 
following: E : 
Teniopteris tenuinervis Brauns. 
Teniopteris stenoneura Schenk. 
Danzopsis marantacea Pres]. 
Ctenophyllum grandifolium Font. 
Podozamites Emmonsii Newb. 
Podozamites tenuistriatus Font. 
It happened that at the time Professor Fontaine was in Washington working up the large collection 
made by Mr. Storrs and myself, the small collection was still at the University of Virginia, » fact 
which I had overlooked until he arrived. I therefore requested him on his return to reexamine the 
original collection at once, while the results of-his study of the new one were fresh in his mind and 
with his own sketches before him. This he did and reported that he found nothing additional in the 
first collection. To make this all the more certain, he then and there attached labels to all the 
specimens of Dr, Stanton’s collection and subsequently returned the whole and I embodied it in the 
general collection. 
Ihave been to the pains to go through, while preparing this paper, and note all the species, as thus 
labeled by him, that he found to occur in the original collection. They are the following: 
Thyrsopteris Maakiana Heer.? _ 
Cladophlebis argutula (Heer) Font. 
Cladophlebis densifolia Font. 
‘Cladophlebis indica (Oldh. and Morr.) Font. 
Teeniopteris orovillensis Font. 
Angiopteridium californicum Font. 
Ctenis grandifolia Font. 
Ctenis auriculata Font. 
Ctenophyllum densifolium Font. 
Podozamites lanceolatus (L. and H.) Fr. Braun. 
Baiera multifida Font. ? 
Carpolithus Storrsii Font. . 
A comparison of the two lists given will doubtless be sufficient to enable anyone at all acquainted 
with these forms to decide to which ones of those on the second list those on the first list most prob- 
ably correspond. L. F. W. 
