466 MESOZOIC FLORAS OF UNITED STATES. 



broad side. The specimen thus has the shape of a saucepan, the inner 

 face being much reduced by the convergence of the edges on all sides. It 

 has, superficially at least, a lurid red color from the paint clay in which 

 it was embedded and which, when it was found, filled all the cavities, but 

 was not cemented and was readily washed out, but the stain is permanent. 

 The specimen is hard, firm, and heavy, and slightly crystallized in places, 

 while the inner face is somewhat chalcedonized, as are also some of the 

 walls of exposed vessels. In an erect position it has a height of 23 cm. 

 and precisely the same width. The same measurements on the inner 

 face give 19 cm. and 10 cm., respectively. The maximum thickness 

 is 11 cm. (Locality: PL LXXX, No. 104.) 



PI. LXXXVII, Fig. IV, 11 shows very clearly the well-marked alveoli 

 on the surface of the Travers fragment, W. C, B., No. 1478. 



This is a well-preserved fragment from the side of a large trunk, 

 apparently beginning at the base and including a considerable area of the 

 exterior and extending inward to include the whole of the medulla. The 

 fractures are all clean and clearly show the internal structure. The cross 

 section above is perfecth' square. The rock is very hard and heavy, some 

 portions somewhat cherty and crystallized. It is dark or brownish red 

 near the outer surface, lighter colored within. The height on the longest 

 side is 16 cm.,, elsewhere reduced by irregularities to 11 cm. or 12 cm. The 

 part of the surface preserved measures 25 cm. in arc. The radial thick- 

 ness is 14 cm. at the base and 11 cm. at the top. A line drawn through 

 the center of the medulla measures 25 cm., but this only reaches the sur- 

 face at one end. The medulla was considerably on one side of the center. 

 (Locality: PL LXXX, No. 77.) 



PL LXXXVII, Fig. V, 12 presents one of the broken surfaces of the 

 R. P. Disney fragment. No. 4, W. C, B., No. 6351. This is a very 

 small fragment, having a narrow elongated form and showing much dis- 

 torted and much worn scars on one side and the outwardly curving strands, 

 tubes, and scars passing into the leaf bases on the inner side. It is 14 cm. 

 long, 6 cm. wide in tangential direction, and 3 cm. thick in radial direction. 

 (Locality: PL LXXX, near No. 50.) 



PL LXXXVII, Fig. V, 15 is a chiefly interior view of the Simms frag- 

 ment, W. C, B., No. 3047. It is a fragment from one side and edge of a 

 much flattened trunk probably of small size and not much longer than the 



