We have only the apex of this large seed, and the fragment shows neither 

 micropyle nor hilum. The external dents look as if it were one of many seeds, closely 

 packed and mutually distorting each other. The black surface*granules are probably the 

 contents of a layer of resin*cells, the walls of which have disappeared. 



CARPOLITHES Sp. 13. 

 PI. XVIII, figs. 11 a, b. 



Nut ovate, splitting into 2 valves; valve slightly asymmetric, compressed laterally 

 and wedge*shaped below, exterior with obscure elongate tubercles and ridges ; wall very 

 thick, cavity small and oblong; canal nearly straight basal towards the shorter side; 

 micropyle apical and nearly obliterated. 



Length 4.8 mm., breadth 3.2 mm. Reuver. 



This fruit has probably been photographed in an inverted position. We now think 

 that it may be half a nut belonging to a second extinct species of Ceratophyllum, with 

 which genus the characters above given would correspond; but there remains no trace 

 of the thin testa. 



CARPOLITHES Sp. 14. 



PI. XVIII, fig. 12. 



A poorly preserved fruit with accrescent calyx, different from any already 

 described. 



Length 4.0 mm., breadth 3.9 mm. Reuver. 



CARPOLITHES Sp. 15. 

 PI. XVIII, figs. 13 a, b. 



Carpel thick and strong, but opening elastically into 2 valves; valve irregularly 

 ovate, coarsely tubercled outside; ventral wall nearly straight very thick; dorsal wall 

 rounded inflated below, flanged inside especially at the base; canal entering the cavity 

 at the base near the ventral margin ; interior finely striate transversely, showing towards 

 the ventral side 3 thin parallel ridges, and at the lower end a deep and wide depression. 



Length 3.4 mm., breadth 2.5 mm. Reuver. 



CARPOLITHES Sp. 16. 

 PI. XVIII, figs. 14 a, b. 



A large ovate seed or kernel; ventral face flattened, with nearly central attach* 

 ment; dorsal face rounded, divided by a central ridge which runs across the apex and 

 round to the attachment. 



Length 18 mm., breadth 15 mm. Reuver. 



Beyond an obscure trace of celbstructure we can make out nothing more. The 



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