444 MESOZOIC FLORAS OF UNITED STATES. 



(major axis) of 30 cm. It rounds off rapidly upward from near the 

 base, so that the width at the summit is onl}^ 15 cm. ■ The thickness 

 (minor axis) is about 10 cm. on the outer edge and 9 cm. across the 

 fractured one. On the broken side the surface parts rise only 5 cm. 

 on the lower side, which is increased to 15 cm. at the opposite side of 

 the oblique fracture. (Locality: PL LXXX, near No. 102.) 



PL LXXXVII, Fig. IV, 1, is a side view of the Comegys fragment, 

 W. C, B., No. 1658, which probably came from near the summit of a 

 laterally compressed trunk of small size embracing part of one of the 

 broad sides and one of the narrow ones, the hollow interior correspond- 

 ing to the curved external surface. The color is drab on the outside 

 and buff within. The rock is light and rather sandy, but not friable. 

 The maximum height is 20 cm., but one side is broken vevy obliquely, 

 so as to make the basal portion narrow. The greatest width is 17 cm., 

 which is reduced below to 7 cm., and rounded off at the top. The radial 

 thickness is about 5 cm. (Locality: PL LXXX, near No. 75.) 



PL LXXXVII, Fig. IV, 7, shows the summit, with terminal bud, 

 of the R. P. Disney trunk, No. 2, W. C, B., No. 6352, more fully illus- 

 trated below. 



PL LXXXVII, Fig. IV, 9, shows a side and fractured surface of the 

 R. P. Disney fragment. No. 2, W. C, B., No. 6348, which is only a small 

 piece of medulla, 6 cm. square and 1 cm. thick, rounded at one end 

 and forming a little slab, but showing the medullary ray scars very 

 prettily on the convex surface. It looks as though it might have formed 

 a part of the trunk No. 1470. (Locality: PL LXXX, near No. 50.) 



PL LXXXVII, Fig. V, 1, represents the Cole fragment, W. C, B., 

 No. 3122, a very small piece from the side of a trunk of unknown size. 

 It is of a light color, sandy texture, and low specific gravity, and is 

 about 8 cm. square and 6 cm. thick, of which the part belonging to 

 the armor is slightly more than 4 cm. thick, the rest consisting of a 

 conical piece of the wood, which is perforated by the tubes of decayed 

 vessels. (Locahty: PL LXXX, No. 54.) 



PL LXXXVII, Fig. V, 10, shows only some fractured surfaces of 

 the Inglehart fragment. No. 2, W. C, B., No. 6347. This specimen 

 seems to represent more than half of a small, dark-colored trunk of the 

 type of W. C, B., No. 1658. It is somewhat laterally compressed and 



