■ 24 ' Appendix. 



FlLlCES. 



Adiantum pedatum, L. 



Pteris aquilina, L. 



Woodwardia Yirginica, Smith. 



Asplenium angustifolium, Michx. Rare about Ann Arbor. 



Asplenium thelypteroides, Michx. 



Asplenium Filix-foenima, Bernh. 



Phegopteris hexagonoptera, Fee. 



Aspidium Thelypteris, Swartz. 



Aspidium Noveboracense, Swartz. 



Aspidium spinulosum var intermedium. 



Aspidium spinulosum var dilatatum. 



Aspidium cristatum, var Clintonianum. 



Aspidium acrostichoides, Swartz. 



Cystopteris bulbifera, Bernh. 



Cystopteris fragilis, Bernh. 



Struthiopteris Germanica, Willd. 



Onoclea sensibilis, L. 



Osmunda regalis, L. 



Osmunda Claytoniana, L. 



Osmunda cinamomea, L. 



Botrychium Virginicum, Swartz. 



Botrychium lunaroides, Swartz. Rare. 



Lycopadiace^. 



Salaginella apus, Spring. 



Exterminated Plants. 



Ranunculus multifidus, Pursh. 

 Dicentra Cucullaria, D. C. 

 Arabis Drommandii, Gray. 

 Erodium circutarium, L., Herb. 

 Polygala polygama, Walt. 

 Nyssa multiflora, Wang. 

 Aphyllon uniflorum, Torr and Gray. 

 CoUinsia verna, Nutt. 

 Dirca palustris, L. 



