132 Holm Additions to the Flora of Washington. 



1249. Lycopodium dendroideum Michx. 



Near the Reform School. Lester F. Ward and the author. 

 North Brookland. Robert Ridgway. 



1253. Selaginella apus Spring. 



Common in Piney Branch woods, Holmead Swamp, Rock 

 Creek, and in the ravines on the Virginia shore, between Aque- 

 duct and Chain bridges. The author. Kalorama. Chamselirium 

 Run. E. S. Burgess. 



ISOETEJE. 



* 12536. Isoetes riparia Engelm. 

 Hunting Creek, near Alexandria. F. V. Coville. 



