656 cnYPTOGAMiA STACHYOPTEEiDES. Botrj'cliiurn. 



In open woods: Pensylvania and Virginia. 1/. June, 

 July. V. V. Resembles the preceding very mucb^ 

 and is probably only a variety. 

 disseclum. 3. B. scapo inferne unifrondoso, fronde tripartito-bipinnati- 

 fida, laciniis liiicaribus bipartitis apice bidentatis. 

 Willd. sp. pi. 5. p. 64. 



Icon. Schkuhrjilic.t. 158. Pluk. amallh. t. 42";. f. 5. 



In pastures and open dry woods : New York to Florida. 

 1/ . June. V. V. 

 virgimcum. 4. B. hirsutum ; scapo medio frondoso, fronde sublerna 

 tripartito-bipinnatifida, foliolis inciso-pinnatifidis, la- 

 ciniis obtusis subtridentatis, spicis bipinnatis divarica- 

 Us.— lFilM. sp. pi. 5. p. 64. 



Eotrypus virginicus. Mic/i. ft. amer. 2. p. 2/4. 



Osmunda virginica. Sp. pi. 157p. 



Osmunda nmltifida. Gmel. nov. com. peirop. 12. ^ 11. 

 /.I. 



Icon. SchliuhrJUic. t. 156. 



In shady woods, on rich vegetable soil : Canada to Ca- 

 rolina. 7/ . June, July. v. v. This is the largest of the 

 species here described ; it is known by the name of 

 Ratlle Snake Fern, probably from the circumstance of 

 growing near the places where those venomous ani- 

 mals generally are found. 

 gracile. 5. B, glabrum ; scapo medio frondoso, fronde tripartito- 



bipinnatifida, laciniis inciso-subpinnatifidis acutis sub- 

 dentatis, spicis graoilibus pinnatis erectis. 



In shady fertile woods: Virginia. %. June. v. v. 

 This species approaches near to the preceding in its 

 first appearance, but is by far a smaller and more 

 slender plant, besides the other distinctions. 



III. SCHISMATOPTERIDES. 



718. HYDROGLOSSUM. Willd. sp. pi. 5. p. 77- 



Ophioglossum. Linn. 



palmatum, l.H. caule flexnoso-scandente, frondibus conjiigatis cor- 

 datis quinquelobo-palmatis, lobis lanceolatis integerri* 

 mis obtusis obsolete sinuatis, spicillis terminalibus 

 composite paniculatis oblongo-linearibus. — Willd. sp,. 

 pL 5. p. S4. ■ ' 



