512 G. H. PERKINS — TERTIARY LIGNITE OF BRANDON, VERMONT 



blunt pointed at the ends, surface irregularly ribbed ; length 32 milli- 

 meters, width 20 millimeters, thickness 14 millimeters. 



Genus Monocarpellites, Perkins, Vermont Report, 1903-1904, page 180. 



Mono carp ellites gibbosus, Perkins, Vermont Report, 1903-1904, page 181. 



Plate 87, figure 18. 



Carpel large, flat on the side of one valve, but very gibbous on the 

 opposite side. This surface bears several sharp ridges, as seen in the 

 figure. Upper end mucronate, lower globose. Length 25 millimeters, 

 width 20 millimeters, thickness at lower end 14 millimeters. A cross- 

 section of Monocarpellites is shown in figure 28. 



Monocarpellites sulcatus, Perkins, Vermont Report, 1903-1904, page 180. 



Plate 87, figure 20. 



Carpel somewhat irregular in outline, lower portion thick, upper 

 thinner, so that a longitudinal section is wedge-shaped ; ribs few ; sharp, 

 and prominent; sulci between the ribs wider than in other species, 

 general form round-oval; length 25 millimeters, width 20 millimeters. 



Genus Tricarpellites, Bowerbank. 



Tricarpellites Jissilis (Lesquereux), Perkins, Vermont Report, 1903-1904, 



page 188. 



Carpolithes Jissilis, Lesquereux, American Journal of Science, volume 



xxxii, page 356. 



Plate 87, figure 19. 



Specimens which have been referred to this genus are among the most 

 common in the lignite, and the one figured may be taken as an example 

 of others. Most of these species are large and rather coarse in texture, 

 three-celled and three-valved. The general form is ovate. Like many of 

 these fruits, the upper end is pointed and the lower rounded. In cross- 

 section the fruit is usually strongly three-lobed. Variable in size, but 

 an average specimen is 30 millimeters long, 20 millimeters wide, and 

 12 millimeters thick. 



Genus Hicoria, Rafinesque. 



Hicoria biacuminata, Perkins, Vermont Report, 1903-1904, page 193. 



Plate 87, figure 22. 



This is a very definitely marked and well preserved species. It ap- 

 pears to have the characteristics of the modern genus to which it is 

 referred. It is pointed at each end, quadrangular in section across the 



