's 
4rib©iÄ&or j of Paleö&otlanf 
Fossilium Catalogus 
II: Plantae. 
Editus a 
W. Jongmans. 
Pars 10: 
K. Nagalhard 
vorm. Nagel, 
Ulmaceae. 
/ 
jr 
W. Junk 
Berlin W. 15 
7. Yl. 1922. 
