424 iMESOZOIC FLORAS OF UNITED STATES. 



PL LXXXVII, Fig. II, 5 shows the Reinsnyder trunk, W. C, B., No. 

 6344, which is a large piece from the flattened edge of a taU, compressed 

 trunk, of low specific gravity and soft structure, stained reddish pink. It 

 probably reaches nearly from base to summit and is 38 cm. high. It is 

 only 14 cm. thick at the lower end, and thins out upward, becoming only 

 8 cm. near the top, where one of the sides disappears. It is 15 cm. wide, 

 but this does not reach the middle of what was the broad side. The 

 armor and wood are pressed close together, leaving onlj^ a thin slab of 

 medulla between. The scars, though distorted, show well on the surface 

 and resemble those of the Helwig trunk, W. C, B., No. 3328. (Locality: 

 PL LXXX, No. 54.) 



PL LXXXVII, Fig. II, 6 gives a side view of the Helwig trunk, 

 W. C, B., No. 3328, one of the leading types of the species, already 

 mentioned and to be treated at length. 



PL LXXXVII, Fig. II, 7 shows, partiallj'' obscured by overlapping, 

 the R. T. Donaldson fragment. No. 3, W. C, B., No. 3324. This is a 

 large piece from one side of a laterality much compressed large trunk, 

 the fracture passing nearly parallel to the short axis. The outer portion 

 is preserved well all round to the fracture on both sides. The fragment 

 extends from the base to very near the summit, toward which it regularly 

 tapers, as if the complete trunk before compression had been dome- 

 shaped. It is of a light-ash color and the rock is fine grained, hard, and 

 heaw. It stands 38 cm. high, has a maximum radial width of 19 cm., 

 and varies in thickness from 15 cm. at the base to 6 cm. at the thinnest 

 place near the summit. The partial girth over the outer surface measures 

 40 cm., and the height as measured along the curving edge is the same. 

 (Locality: PL LXXX, No. 106.) 



PL LXXXVII, Fig. Ill, 1 is a view, also partially hidden by the 

 specimen on the shelf below it, of the Lester trunk, W. C, B., No. 3056. 

 It is a small trunk, nearly complete, but lacking portions near the summit. 

 It is elliptical or oblong in cross section, nearly uniform in size all the way. 

 The base is probably the same as when growing. There is a cavity at 

 the summit showing the top of the medulla, and on one side a large piece 

 has decayed. Smaller pieces have been broken at the two ends of the 

 ellipse. The external surface has suffered somewhat from wear at various 

 points. The rock is moderately firm and of a dull-orange color, with 



