142 



Flora, pi. viii, f. i. This is the most abundant species in the 

 deposit. The leaves are broad, and very obtuse at the apex, 

 herein differing from P.falcata Kn. of the Yellowstone Laramie 

 and the living P. pliraguiitcs. It does not seem possible to refer 

 this to P. oemngensis A. Br. of the European Upper Miocene ; it 

 is no doubt much nearer to P. alaskana Heer, but Heer's plant, 

 so far as positively known, had narrower leaves. 



3. Anemia supet'cretacea Hollick. Previously known from the 

 Laramie at Florence, Colorado. First found at Marshall by 

 Paul Haworth. Our specimens run a little larger than Rollick's, 

 but appear to be otherwise quite identical ; the pinnules are 

 entire. The plant may possibly be a variety of Anemia Jiaydenii 

 [Gymnogramrna haydenii Lx., 1 872), which appears to be distinctly 

 different from A. siibcretacea (Sap.) Gard. & Ett., as originally 

 figured by Saporta. In the genuine siibcretacea the pinnules are 

 shorter than in haydenii, and more irregularly and remotely 

 toothed. A. perplexa Hollick seems to me much more like A. 

 siibcretacea, differing only in the shorter and more broadly 

 cuneate pinnules. Some of the material figured under A. per- 

 plexa has entire pinnules, and might just as well represent the 

 Marshall plant. 



No conifers were identified, though a very imperfect fragment 

 in a piece of coarse sandstone may possibly belong to Sequoia^ 



Cinnamomiim affine Lx. and Jnglans leconteana Lx. were found 

 associated at a different place, whether separated by any note- 

 worthy interval of time I do not know. They appear to come 

 from a higher level. 



Sequoia longifolia Lx., which is such a characteristic fossil of 

 the beds above the coal at Austin's Bluff, Colorado Springs, has 

 been recorded from Marshall, but we did not find it, unless the 

 dubious fragment just referred to belongs there. 

 University of Colorado. 



