14 ]\\ird — iSpecies of Cijradcoi.dca frorn Marijhiiid. 



science is indebted for the gi-eater part of all that is known of the flora of 

 these deposits. 



Cycadeoidea Goucheriana n. sp. 



Trunk large, cylindrico-conieal with elliptical cross section, 30 to 50 

 centimeters high, 25 to 50 centimeters in diameter, light colored and of 

 low specific gravity, somewhat chalky and friable ; lower leaves some- 

 what defiexed, ujiper ones ascending, the line between the two definite 

 and encircling the trunk near the middle; leaf scars arranged in two sets 

 of spiral rows, both having nearly the same angle to the axis, 45° or 

 greater; scars variable in size and shape, chiefly subrhoml)ic to nearly 

 triangular with curved or fluted sides, inner wall of the tubes marked 

 by a raised line around it; scars averaging 11 millimeters in vertical and 

 2o millimeters in lateral measurement; leaf bases usually absent or only 

 adhering to the bottom of the scars ; ramentum walls thick, moi-e or less 

 divided into irregular laminpe or scales with fissures between them, their 

 outer edges ragged; reproductive organs numerous, well marked, irrogu- 

 lai'ly scattered over the surface, most abuntlant at tlie narrower sides, 

 usually cavitous in the center, sometimes solid and i)rotruding, surrounded 

 by concentrically arranged crescent-shaped bract scars, sometimes well 

 exposed and clearly distinguishable into spadix and involucre, the scales 

 of the latter imbricated, the entire organ conical with the a23ex toward 

 the axis of the trunk : armor 3 to 5 centimeters thick, separated from the 

 wood by a definite line ; woody zone 4 centimeters thick, consisting of an 

 outer parenchymatous ring 3 centimeters thick, a thin ring of loose open 

 structure, and two thin plates separated by another ring of coarse cells 

 divided by i-adial partitions, the inner walls of both plates marked with 

 the scars of the medullar}- rays, the pattern different in the two cases, the 

 scars on the inner plate 13 millimeters long, those on the outer longer 

 and taijering upward; medulla large, elliptical, tapering upward, of a 

 coarse, homogeneous structure. 



Only one specimen referable to this si)ecies lias thus far been brought 

 to light, l)ut this is one of the most perfect and also one of the most beau- 

 tiful of all that have been discovered in the Iron Ore beds. It is further 

 of special interest from the circumstance that its exact stratigraphical and 

 local ])osition when found is so thoroughly vouched for that there is little 

 room for doubt in the matter. It is with great pleasure that I name it in 

 honor of Ur. John F. Goucher, president of the Woman's College of Balti- 

 more, to whose liberal and munificent policy the entire collection is due. 



Cycadeoidea Uhleri n. sp. 



Trunks small, 28 centimeters high, 20 centimeters in diameter, 50 to 60 

 centimeters in girth at the thickest part, circular, or only slightly ellip- 

 ti(;al in cross section, conical or somewhat cylindrical-conical in shape, 

 contracted at the base, silicified, but porous and light, reddish or gray in 

 color; leaf scars definitely arranged in (]uincunx order and spiral rows 



