460 PALEONTOLOGY OF ILLINOIS. 



by the pointed lines, a, b, c, fig. 1. The lower scar, a, is fig- 

 ured 1 b, and has a different form from the upper one, 1 a. 

 The scars at b and c, fig. 1, are obsolete, scarcely visible, and 

 consequently the true disposition of the leaves is only supposed. 

 It appears to be nearly in one-fourth. Fig. lc is the cross sec- 

 tion of the stem, natural size. Found at Carmi, White county. 



SIXTH DIVISION.— FRUITS OR NUTLETS. 



Genus Trigonocarpum, Brgt. Fruit ovoid, three or six cos- 

 tate, generally marked at the point of attachment by a hexa- 

 gonal depression. 



Trigonocarpum juglans, Sp. nov. PI. 46, fig. 3. Fruit of 

 large size, about one inch and a half in diameter, nearly round, 

 apparently three ribbed; ribs elevated, sulcate; surface nearly 

 smooth, slightly striated or marked by narrow, distant lines, 

 parallel to the ribs. The figure shows all that can be seen of 

 the preserved part of this fruit. Found in a piece of iron 

 shale at Murphysboro, Jackson county. Lower Coal Measures. 



Trigonocarpum rostellatum, Sp. nov. PI. 46, fig. 6. Fruit 

 oval, a little flattened, three ribbed only near the point, which 

 is curved in a short beak; lower part of the fruit round and 

 smooth. Locality: Grayville, White county. Upper Coal 

 Measures. 



Genus Carpolithes, Sternb. Fruits of various forms and 

 of doubtful affinity. 



Carpolithes multistriatus,^. Sternb. PL 46, fig. 2. I refer 

 this fruit with doubt to the species figured by Sternberg, Vers., 

 vol. 2, tab. 39, fig. 1 and 2. The American form is longer, 

 more evidently pointed at the base, more obscurely ribbed. It 

 is oblong, nearly two inches long, apparently originally inclosed 

 in a large shell or woody envelope transformed into coal. It 

 is remarkable that in our fruit, as in figure 1 of Sternberg's, 

 the envelope of coal matter appears to be extended above or 



