422 MESOZOIC FLORAS OF UNITED STATES. 



and others not; some have the center decaj^ed and some seem to consist 

 more of bracts than essential organs; but I think that difference of age 

 would account for all these differences. Some are probably quite young 

 and immature, others fully ripe, and still others old and ready to decay. 

 (Locality: PI. LXXX, No. 91.) 



PI. LXXXIII, Fig. 1, the central figure of the group shown in the 

 photograph sent by Mr. Tyson to Mr. F. B. Meek, of which an account 

 was given in the historical part of this paper (p. 414), is another and 

 quite different view of the Johns Hopkins University Cycad No. 1. It 

 is nearly in the same position as that of Professor Fontaine's pi. clxxix, 

 but the trunk was inclined toward the camera so as to show the summit. 

 The ferruginous band is seen running the whole length of the trunk on 

 the left. 



PL LXXXIII, Fig. 2, on the left of the figure last consideicd, is a 



view of the Johns Hopkins University Cycad No. 3, described by Professor 



'Fontaine on p. 192 of his monograph as "Fragment No. 2," but not 



figured by him. It is not shown here to the best advantage and will be 



mentioned again in the description of the next plate. 



PL LXXXIII, Fig. 4, is a view of the base of the Link trunk (W. C, 

 B., No. 1481.) 



PL LXXXIV, Fig. 1, is a side vicvv of the Johns Hopkins University 

 cycad No. 5, described by Professor Fontaine as "Fragment No. 2." 

 At the time I described the specimens, in January, 1895, it was not 

 with the other specimens and I did not treat it. It was discovered soon 

 after in the basement and I was notified of the fact. On May 11 of 

 that year I described it and had the photograph made which constitutes 

 PL LXXXIV, of which it occupies the center (Fig. 1), the fragments 

 Nos. 2 and 4, not previously figured, occupying the left and right (Figs. 

 2 and 3), respectively. The specimen seems to consist of a little over half 

 of a trunk of medium size of conical shape and elliptical cross section. 

 It is truncated at the summit and oblique at the base. As stated by 

 Professor Fontaine on p. 191 of his monograph, it has a circle of cemented 

 ferruginous sand similar to that of No. 1, which, like that, is v/hoUy super- 

 ficial. In this case, however, the plane at which the formation of this 

 ferruginous cement took place was much below (or possibly above) the 

 center of the trunk. 



