338 L. F. Ward — Fossil Cycads in the Yale Museum. 



the projecting spadices which they invest, the central portions 

 consisting of obovate, longitudinally striate fruits having defi- 

 nite and peculiar pits and markings ; armor 8 cm thick, the leaf 

 bases appearing to blend with the large curving vascular 

 strands that are seen passing through the cortical parenchyma; 

 fibrous zone and medulla not represented. 



This well-marked species consists, so far as known, of the 5 

 fragments Nos. 722-726, collected by Mr. Wells ten miles west 

 of Sundance in Wyoming, 90 miles northwest of the Minne- 

 kahta localities. These specimens therefore possess an especial 

 interest from the point of view of distribution, the locality 

 lying between the old one and the Hay Creek region from 

 which Professor Jenney made his fine collection of fossil 

 plants. T\ r os. 722-724 consist of broad portions of the armor 

 at the upper part of three different trunks, the first two includ- 

 ing the terminal bud and broad, flat surrounding area. No. 

 722 is the largest specimen, measuring 28 cm the longest way. 

 They all show a curvature on both sides, which if carried all 

 the way round would make an immense trunk. It is altogether 

 probable that they may represent the flattened sides of much 

 compressed trunks. It is greatly to be hoped that more mate- 

 rial may be obtained from this locality. 



The specific name, from the Greek words for sun and dance, 

 alludes to Sundance, the only name with which the locality 

 has been associated. 



Plate 1Y shows the outer surface of No. 722, with the small 

 scars spirally arranged around the small terminal bud. 



Cycadeoidea utopiensis n. sp. 



Trunk small (21 cm high, 17X22 cm in diameter, with a girth 

 of 63 cm ), irregularly short-conical, elliptical in cross section but 

 apparently not forcibly compressed, showing one small branch 

 and a cavity from which a second has been removed, the sur- 

 face well preserved, but having an area near the summit cov- 

 ered by what appears to be an outer coating of ramentum as 

 in the genus Cycadella, more or less obscuring the organs and 

 definitely broken away on three sides including the apex ; ter- 

 minal bud well developed, 5 cm high, 7x9 cm in diameter, rounded 

 towards the summit where there is a depressed area 3 cm in 

 diameter occupied by small rhombic scars surrounding the 

 somewhat projecting axis 12 mm in diameter; base preserved in 

 great part, somewhat hollowed out ; rock soft except the cen- 

 tral portion which is hard and fine grained, light drab color on 

 the surface with a somewhat calcareous appearance, but con- 

 taining no lime, jet black at the center, of rather low specific 

 gravity, weighing 8*17 kilograms ; organs of the armor nearly 



