No. 50.J 197 



SUB-ORDER OpIIIOGLOSSEjE . 



Ophioglossum, L. Adder' s-tongue. 



vulgatum, L . Low grounds and thickets . June . 



Botrychium, Swartz. Moonwort. 



fumarioides, Sw. Moist woods. July- August, 

 dissectum, Muhl. Moist woods. August-September, 

 virginicum, Sw . B. gracile, Michx. Woods and rocky hills, 



May- June . 

 simplex, Hitchcock. Highlands of New- York. Dr. Barratt. 



Order LYCOPODIACEJE . The Club-Moss Tribe. 



Lycopodium, L. Club Moss . 



clavatum, L . Dry woods . July . 

 complanatum, L. Dry woods. July. 



obscurum, L. L. dendroideum, Michx. Shady woods. July, 

 annotinum, L. Sandy woods and hill sides. July, 

 inundatum, L . Wet places ; western counties . July . 

 rupestre, L. Dry rocks. July. 



selago, L. Summit of Mount Marcy. July. Whiteface Moun- 

 tain . Prof. Hall and Dr. Emmons . 

 lucidulum, Michx. Shady woods and swamps . July- August . 

 apodum, L. L. albidulum, Michx. Moist woods. July-August. 



Iscetes, L. Quillwort. 



lacustris, L. Bottom of Oswego River, near the Falls. Pursh. 



Order SALVINIE.E. 



Salvinia, Guett. 



natans, Hoff. Lakes of still water ; western part of the State . 

 Pursh . 



Azolla, Lam. 



caroliniana, Lam. Ponds and lakes ; near New-York. Braddock's 

 Bay, Lake Ontario, Dr. Bradley . 



