Fossil Plants. 29 
Carpouituus TRILecuLARIS.* Specific character and descrip- 
tion.—An oblong, ovate nut, divided longitudinally into three equal 
divisions, by strongly marked, elevated ridges, running from the 
base to the tip; base truncated, and profoundly impressed with the 
cicatrix of the stem; tip rather pointed; surface smooth; length 
one inch and four lines’ diameter ten lines. 
Observations os Seam of the specimens are flattened; others re- 
tain their original rotundity ; found in the sand rock at Mariner’s 
Mills, intermixed with casts of various species of plants; amongst 
which were Sigillaria, Calamites columnare, Calamites dubia, with 
several species of arborescent ferns. This nut is probably the fruit 
of some antediluvian Palm. We obtained a number of specimens, 
several of which were detached from the rock, while we were pres- 
ent. Drawings of two specimens are given at fig. 4. 
Syrincopenpron Kirtianpivs. Specific Character.—Stem 
swelled at intervals; surface finely striated, and covered with alter- 
nate grooves and double linear dot-like impressions, arranged longi- 
tudinally. 
* On examining the shell of the recent cocoa nut, I find its surface marked with 
prominent ridges, dividing the disk into thee equal divisions, a to the Car- 
polithus trilocularis. This oe is an 
fruit of some ancient Palm tr 
