JUKASSIC CYCADS FKOM WY()MIX(;. 195 



Cycadkm.a ci!K1mii\i;i.\ Ward. 



ris. LVIJI LX. 



1!)0(). Cycadtlla cirpidaria Ward: Proc. Wash. Acad. Sci., Vol. I, p. _'S(): T\vciiti(-tli 

 Ann. Rop. U. S. (Jcol. .Surv., 1S9S-99, I't. II, p. I 111, pi. <lxiii; ])l. clxiv. 



Perhajxs tlu^ ino.sl iinporlant and .sati.sfactoi y rcsiill of the elaboration 

 of llio additional material is that ohtaiiuMl for thi.< pi-cxion.sly littl(>-kno\vn 

 species. It was represented in the original coUeclion of .Mr. W. II. !!(>(>([ 

 hy only one specimen, Xo. 500.83, which is very anonialons in form and 

 character, antl no one con d tell whethei" these wonld prove constant or 

 not if more material were to come to li^ht. The pecnliar shape, resem- 

 hlinsi a moccasin, was especially liable to vary. Neither was it pi-obable 

 that the size wonld I'emain constant. It was interestinji, therefoi'e, to find 

 this species rc^presented in the later collections. Among the fragments 

 collected 1)>' Mr. (iilmore were fonr pieces, all of which bore so strikingly 

 the characters of this species that I referred them to it before I discovered 

 thai they belonged together. In the subsequent arrangement by species 

 these were bionght into proximity, and I saw at once that they were parts 

 of llie same tmnik. Two of the pieces had previously l)een found to fit 

 each other and had been given the same number, No. 100.215. But one 

 of the pieces also fits No. 100.202, and this in turn matches No. 100.230. 

 The four pieces thus brought together form an almost complete trunk, 

 which, though (x)nsiderably larger than the t^-pe specimen previously- 

 known, has approximately the same anomalous shape, resembling a 

 human foot. The compression, however, is more oblique, and the axis 

 passes somewhat diagonally through the specimen. The greatest length 

 is 28 cm., the greatest width 14 cm., and the maximum thickness 9 cm. 

 It has a girth of about 35 cm. The four pieces together weigh 3.02 kg. 



There is a still larger specimen, No. 500.506, collected by myself, 

 which I must either refer to this species or else treat as a new species. I 

 pi-efer the former course, although it i-equires considerable explanation of 

 the specific characters. It is nearly circular in outline and greatly com- 

 pressed vertically, so as to have a somewhat lenticular shape with rather 

 shai-p edges. The axis is slightly oblique ; at least it emerges considerably 

 on one side of the center of the upper side. This axis is 12 cm. long, 

 which represents the greatest thickness of the specimen. The diameter 

 is about 2-1 cm. and the girth 75 cm. The surface is much obscured b\- com- 



