2»2 WARD 



had scarcely any affinities except with this, and upon a thorough com- 

 parison of all the characters I am convinced that it belongs to the same 

 species. That specimen was broken into three unequal pieces but 

 mended with glue before sending. A small flake or cap numbered 

 500.25, from the light weathered surface of some trunk, having a 

 coarse black structure on the fractured side, resembles No. 500.24 

 more than any other specimen, but does not exactly fit its broken sum- 

 mit. Rather than leave it wholly unassigned I assume that it belongs 

 here. 



No. 500.1 weighs 12.56, No. 500.24, 2.52, and No. 500.25, o.ii 

 kilograms. 



The specific name has a vague reference to the Freezeout Hills in 

 which the beds occur. 



CYCADELLA CARBONENSIS n. sp. 



Trunk of maximum size (39cm high, 21x39cm in diameter), 

 subglobular, both laterally and vertically compressed, the principal 

 axis oblique to the plane of compression, having numerous sec- 

 ondary axes forming large short branches or rounded elevations in- 

 terspersed with smaller ones, the primary axis terminating in a well 

 developed bud, the base occupied by a circular concavity ; rock of me- 

 dium hardness and specific gravity, nearly black, considerably miner- 

 alized in the interior ; organs of the armor radiating from an equato- 

 rial zone ; phyllotaxy not traceable ; leaf scars subrhombic, rhombic, 

 or irregular in shape, 30mm wide, 15mm high; leaf bases rough and 

 porous; walls 2-3mm thick, firm, and definitely bounded, longitudi- 

 nally striate with raised white lines, median line higher than the 

 rest ; reproductive organs numerous but not well developed, of two 

 kinds, large and small, the former difficult to distinguish from secon- 

 dary axes, all usually more or less elevated, but occasionally de- 

 pressed or decayed so as to leave a shallow concavity, elliptical in 

 cross-section, the larger ones 3 x5cm in diameter, the smaller about 

 half as large, the former class surrounded by faintly visible large sub- 

 rhombic involucral bract scars simulating and passing into leaf scars, 

 the central portions solid and heterogeneous ; armor 4-5cm thick, its 

 junction with the axis obscure ; woody zone 4— 5cm thick, undifferen- 

 tiated ; medulla nearly circular, 5-6cm in diameter, smooth and homo- 

 geneous in structure. 



The largest specimen in the collection. No. 500.2, weighing 37-69 

 kilograms, is unique also in its form and a considerable number of 

 other characters, and has to form a species by itself. I name it for 



