THE FLORA. 



165 



The material from the Murphy coal mine, 

 near Golden, Colo., contains several obscure 

 fruits, the best of which are here figured. 

 Fruits of this kind are all unsatisfactory, and 

 I have hesitated to name them, but they un- 

 doubtedlj^ represent a type of vegetation pres- 

 ent in these beds and should perhaps legiti- 

 mately be designated for the benefit of future 

 workers, though their alhnities are and prob- 

 abl}- must remain uncertain. 



These fruits appear to occur in pairs, though 

 there is no evidence of organic connection, and 

 it may be that this association is merely acci- 

 dental. The shape and apparent consistence 

 suggest the hard, stony putamen of certain 

 species of Prunus, but this is mere conjecture. 

 They are perhaps sufficiently well figured to 

 permit subsequent identification. 



Occurrence: Laramie formation. Murphy 

 coal bank, Ralston County, Colo., west of 

 Golden, collected by Arthur Lakes, June, 1890. 



Carpites lesquereuxiana Knowlton, n. sp. 



Carpites lesquereiuiana Knowlton [nomon nudum], U. S. 

 Geol. Survey Bull. 696, p. 135, 1919. 



Fruit large, about 18 millimeters long, about 

 17 millimeters in greatest diameter and 13 

 millimeters in least diameter, slightly obovoid, 

 with a broad, flat base and an obtuse apex; 

 provided with about twelve well-defined ridges 

 or ribs at the base and up the sides which by 

 their union are reduced just below the apex to 

 about five. 



This specimen is recorded in the fossil-plant 

 catalogue of the United States National 

 Museum (No. 951) as Carpites rosiellatus 

 Lescjuereux — that is, the small piece of matrix 

 on which it occurs is so recorded. The smaller 

 of the two fruits on this matri.x obviously 

 belongs to Carpites rostellatus. but the one 

 above described is quite different and un- 

 doubtedly represents a new species. 



Occurrence: liaramie formation, Coal Creek, 

 Boulder County, Colo. 



Carpites rhomboidalis Lesquereux. 



Carpites rhomboidalis Lesquereux, Tertiary flora: U. S. 

 Geol. Survey Terr. Rept., vol. 7, p. 306, pi. 60, figs. 

 28, 29, 1S78; U. S. Geol. and Geog. Survey Terr. 

 Ann. Rept. for 1876, p. .520, 1878. 



The two t\^pes of this species are on one 

 piece of matrLx, which is No. 507 of the United 

 States National Museum collections. They 

 85344—22 12 



represent so far as known the only specimens 

 obtained. 



In the " Tertiary flora," page 306, this species 

 is said to have come from South Table Moun- 

 tain, near Golden, Colo., but as the matrix is the 

 coarse white sandstone so characteristic of the 

 true Laramie, it is practically certain that the 

 specimen did not come from that locality, 

 where the rock is of Denver age, but from a 

 locality south or west of Golden, where the 

 Laramie is known to be exposed. 



Occurrence: Laramie formation. Golden, 

 Colo. 



Phyllites leydenianus Knowlton, n. sp. 



Plate XVIII, figure 5. 



Phyllites Uydenianus Knowlton [nomen nudum], U. S. 

 Geol. Survey Bull. 696, p. 446, 1919. 



Leaves of thick texture, ovate, somewhat 

 unequal at the base, margin and apex prac- 

 tically destroyed; midrib very strong; second- 

 aries only two or three pairs, the lowest pair 

 arising a short distance above the base and 

 producing a pseudo three-ribbed appearance, 

 each with a few tertiary branches on the out- 

 side; next pair of secondaries near the middle 

 of the blade, opposite, strong, apparently cras- 

 pedodrome, but this can not be made out with 

 certainty. 



This form is represented by several leaves, all 

 of which are so fragmentary that the whole 

 character can not be made out. It appears to 

 have been ovate and entire, being about 9 

 centimeters long and 5 centimeters wide. The 

 only portion of the margin preserved is at the 

 base. The peculiarity of this form lies in the 

 nervation, the two pairs of especially strong 

 secondaries being opposite and probably cras- 

 pedodrome. The affinities of this leaf are not 

 recognizable, though it can probably be 

 recognized for stratigraphic purposes. 



Occurrence: Laramie formation, Leyden 

 Gulch, 6^ miles north of Golden, Colo., col- 

 lected by A. C. Peale, 1908. 



Phyllites marshallensis Knowlton, n. sp. 



Plate XXVIII, figure 7. 



Phyllites marshnllensi-s Knowlton [nomen nudum], U. S. 

 Geol. Survey Bull. 696, p. 446, 1919. 



Leaf large, coriaceous, lanceolate, appar- 

 ently rounded at the base, narrowly acuminate 

 at the apex; margin prominently undulate, the 

 lobes and sinuses broadly rounded; midrib 



