THE MARYLAND CYCADS. 441 



the leaf bases, ramentum walls, fibers, etc. The rock is of a red color, 

 as if stained with the paint in which it was doubtless long embedded. 

 It is dark and heavy and highly mineralized, especially on the interior 

 parts, which have a ci;ystalline surface with numerous frost-like projec- 

 tions. The specimen is 17 cm. in diameter. The partial diameter 

 measured from the circumference through the center to the vertical frac- 

 ture is 14 cm., which shows that this would have been the major axis of 

 a somewhat elliptical cross section. The vertical thickness is between 

 6 cm. and 7 cm. 



Two other specimens referred to this species are not figured and 

 ■ may be mentioned here. One of these is the R. T. Donaldson fragment. 

 No. 5, W. C, B., No. 3327, a very small piece, measuring 8 cm. in tan- 

 gential, 8 cm. in radial, and 6 cm. in vertical direction. It consists 

 chiefiy of a piece of the wood, and could not have been recognized as a 

 cycad but for a small portion of the armor attached to one side containing 

 one leaf scar and one fruiting axis. 



The other is the R. W. Clark fragment, W. C, B., No. 3350, a very 

 small piece of a trunk of unknown size, showing a httle of the external 

 surface and extending in a wedge-shaped manner a short distance into 

 the axis. It is rather light colored, with rust streaks, and soft sandy in 

 structui'e. It is 8 cm. in a tangential direction and 4 cm. in a direction 

 parallel to the axis of the trunk. Its radial thickness is a little over 

 6 cm. The surface shows a few imperfect leaf scars. Two projecting 

 reproductive organs are present on the small area exposed. 



The reference of all these fragments to Cycadeoidea Fontaijieana is, 

 of course, more or less doubtful. The South Carolina College cycad 

 clearly belongs to this species. 



The following is a list of the numbers, with the names assigned 

 and the weights: 



Weight in 

 kilograms. 



Maryland Academy Cycad, No. 3 2. 53 



Maryland Academy Cycad, No. 4 ^ 1 . 72 



South Carolina College Cycad 5. 56 



W. C.,B., No. 1467, the Griffith trunk 8.00 



W. C, B., No. 1470, the Noah Donaldson trunk 3. 18 



W. C, B., No. 1473, theR. T. Donaldson fragment, No. 1 . .45 



W. C, B., No. 1485, the Cronmiller fragment 1.42 



