47)2 MKSOZCMC FLORAS OF rMTFD STATFS. 



Views of hotii tlic .specimens appear in tlie different jirdups and show 

 their rehitive size and charactei'. and tlie tyjx^ is shown in PI. XCIX. 



PI. LXXXVII, Fig. I, 8 represents the same side of the Wilson 

 trnnk, W. ('.. B.. Xo. 1479, that is shown in PI. XCIX, l)vit here the 

 specimen is more inclined from the camera, so that the apical cavity is 

 not .seen. The equatorial zone is very distinct. 



PI. LXXXIX, Vig. I, 3 gives an excellent view of the base and a 

 portion of tlu> external surface of the Dearstine trunk, M. (i. ,^.-\\'. C, 

 B., Xo. 9041). This is part of the base of a very large trunk, probal)ly 

 lai-ger than W. (\, B., X'o. 1479, but as that specimen was decayed at 

 the Ixase, this one supplies that deficiency. It has the same light-colored 

 sandy character, and the specific characters all agree. This specimen 

 is very unequally and obliquely- l^roken across near the l)ase, so that 

 while one side actually reaches the base the other rises 20 cm. above it, 

 but the rapid rounding off on that side indicates that the trunk was 

 either much inclined or else greatly compressed vertically. There is 

 little lateral compression and the diameter either way is about 36 cm. 

 It weighs 17.24 kg. (Locality: PL LXXX, Xo. 103.) 



PI. XCIX shows the perfect side and the apex, with its depression, 

 of the original type or Wilson tiamk. W. C, B., Xo. 1479. 



This is perhaps the most interesting of all the Maryland cycads, 

 not only because its precise stratigraphical position is so well known, 

 but also from its large size, its completeness, and the number of fea- 

 tures it presents that are not possessed by any other specimen. It is 

 unbranched and somewhat elliptical in cross section. The longer diam- 

 eter is 47 cm. and the shorter 25 cm., measured at about the middle 

 part. It does not vary greatly until near the sunmiit, where it is quite 

 rapidly contracted. Its maximvmi girth is 122 cm.; that near the top 

 is 110 cm. It is obliquely trvmcated at the summit, but no great por- 

 tion is wanting. The longer side shows a height of 47 cm. and the 

 shorter of 35 cm. The fracture across the top is sunk in the middle 

 and the average measurement does not exceed 39 cm. One side is 

 complete except the loss of a small piece at the summit. The other 

 side has lost a large irregular portion at the base, making an opening 

 into the hollow interior 27 cm. high and varying in width from 10 cm. 

 to 23 cm. A small piece was purposely broken out of this opening 



