470 MESOZOIC FLORAS OF UNITED STATES. 



but does not exactly match that trunk. It is 21 cm. high, 34 cm. in 

 greater and 17 cm. in lesser diameter at the top, where it is thickest, 

 the sides being deeply pressed in below, so that it is only 11 cm. thick 

 at the, transverse fracture. The maximum girth is 81 cm. The fracture 

 is even and the summit is perfect, showing a depression with a low 

 prominence in the center surrounded by polygonal scars concentrically 

 arranged. (Locality: PL LXXX, No. 57.) 



Ctcadeoidea FisHEEiE Ward n. sp. 



PI. LXXXVII, Fig. in, 9; PI. CV. 



Trunks rather small (about 30 cm. high and 20 cm. in diameter), 

 conical, unbranched; rock soft, light buff colored, of low specific gravity; 

 leaf stalks strongly inclined, making an angle with the axis bf the trunk 

 of nearly 45°; rows of scars very distinct, spirally arranged around the 

 trunk, those from left to right making an angle with the vertical axis of 

 about 45°, those from right to left of about 30°, the latter much the more 

 obvi®us and curving upward, so that the angle varies from 45° below to 

 25° above; leaf scars subrhombic, the two upper ones often forming a 

 gentle arch, sometimes nearly a horizontal line, making the alveoh true 

 triangles, the lower 2 cm., the upper 12 mm. wide, about 1 cm. high, 

 diminishing toward the summit; leaf bases usually present, soft, sandy, 

 and fine grained; rarely reaching the surface, generally sunk to a depth 

 ■of 5 mm., sometimes of 2 cm.; vascular bundles often visible either as 

 ;slight protuberances on the ends of those leaf bases that rise highest in 

 the scars, or as small dots on those that lie deeper, or as a series of ridges 

 running down into the scars where the central portion is deeper than the 

 outer portion, the rows 0.5 mm. from the outer margin, with occasional 

 faint traces of more central bundles ; ramentum walls when normal about 

 5 mm. thick, of a rather firm consistency, presenting a continuous sharp 

 ridge in the direction of the rows of scars from right to left, without visible 

 commissure; reproductive organs abundant, one in the axil of each leaf, 

 small and doubtless mostly abortive, occupying wide triangular spaces 

 between the leaf scars, causing the walls to appear abnormally thick; 

 spadices always present and flush with the walls, elliptical or circular in 

 cross section, the larger ones 2 cm. wide and 1 cm. high, often much 

 smaller; involucral scales abundant, occupying most of the space between 



