20 16. Botrych. 1. FILICES. Fiend. ct, 



Lunaria minor ramosa, Lawsoni ; Raii Syn, 129 ; Ger. em. 406, 

 Osmunda Lunaria B. Lin. S. P. 1519. 

 O. lanceolata, Gmel. N. C. Petr. 12, 516, 

 Botrychium rutaceum, SwartT- Syn. Fil. ITl. 



Meadows and hilly pastures ; perennial ; June. 



3. Botrychium mairicarioides. Feverfew moonworl. 



Scape naked, three parted near the root, subbipinnate j 

 leaflets oblong, obtuse, toothed. 



Lunaria minor foliis dissectis Lawson, Raii Syn. 129. 

 Osmunda Lunaria y. Smith F. Ang. 1 107. 

 O. matricarise, Schrank F. Bav. 419. 

 Botrychium rutaceum S. Swartz Syn. Fil. 171. 

 Botrychium mairicarioides, Willd. S. P. 



Meadows and hill pastures ; perennial ; July. 



K. OpHioGLossiE. Spike tworowed, apparently jointed ; 

 capsules immersed in the spike, opening transversely, with 

 neither rings nor striae. 



XVII. 17. OPHIOGLOSSUM. Tragus. Adderstongue. 



Spike two rowed; capsules immersed, opening trans- 

 versely. 



Ophioglossum vulgatum. Common adderstongue^ 



• Spike on the stem ; frond ovate obtuse, finely reticulated. 



Ophioglossum, Raii Syn, 128 ; Ger. em. 404. 

 O. seu Lingua serpentina, Park. 506. 

 O. vulgatum, Lin. S. P. 1518. 

 O. ovatum Salisb. Prod. 401. 

 Ophioglossum vulgatum, C, Bank. Pin. 354, 



In moist fields and pastures ; perennial ; May. 



Root fibrous ; frond simple, single, ovate with a footstalk,, 

 scarce a hand high, verj^ smooth, greenish, not nicked, 

 bearing the spike at the bottom ; spike erect, acute, com- 

 pressed, bearing many capsules. 



^. bifidum. Spike bifid. 



y. duplex. Spike double. 



^. incisum. Frond slightly lobed. 



