20 



KANSAS ACADEMY^ OF SCIENCE. 



Equisetaceae. 

 Equisetum, Horse-tail. 

 E. sylvaticum. 

 E. pratense. Snow. 

 E. hyemale. Scouring Rush. Snow. 



FiLiCES, Ferns. 

 In the order given by Mr. Wilson. They 

 ■were all found in Leavenworth county. 

 Adiantum, Maiden-hair. 

 A. pedatum Linn. Shady woods; abund- 

 ant ; this I have often seen. 



Onoclea, Sensitive Fern. 

 O. sensibilis Linn. Shady thickets; com- 

 mon, 



Woodsia, Rock Polypod. 

 W. obtusa Torrey. Calcareous rocks near 

 Fort Leavenworth. 



Cystopteris, Bladder Fern. 

 C. fragilis Bernh. Moist woods ; abund- 

 ant. 



Aspidium, Shield Fern. 

 A. Goldianum Hook. Goldie's Fern. 

 Shady woods ; not frequent. 



Asplenium, Spleenwort. 



A. angustifolium Michx. Bank of Mis- 

 souri ; several places. 



Botrychium, Rattlesnake Fern. 



B. Virginicum Linn. Dry woods ; hazel 

 brush ; common. 



AUosorus, Rock Brake. 

 A. atropurpureus Gray. ( Pteris, Linn.) 

 Dry rocks ; river bank ; rare. 



Camptosorus, Walking Fern. 



C. rhizophyllus Link. Antigramma, J.. 

 Smith. Mossy rocks ; river bank ; rare. 



Number of species, about 540. 

 Not east of the Mississippi, (?) 36. 

 Further observation may show some errors. 



