RECENTLY DISCOVERED SPECIES AND FORMS. 



The following list contains all the species, varieties and 

 forms of ferns described from America in American publications 

 during the past ten years, so far as known. In this list are not 

 included previously known forms or varieties which have recently 

 been raised to specific rank. 



Adiantum modestum Underwood. Bull. Torr. Bot. Club. 28: 

 46, 1 901. 



Asplenium Clutei Gilbert. Fern Bull. 8: 62, 1900. 

 Asplcnium ebcneum Hortonae Davenport. Rhodora. 3: 1, 

 1 901. 



Asplenium Kamchatkanum Gilbert. Fern Bull. 9 154, 1901. 

 Asplenium vespertinum Maxon. Bull. Torr. Bot. Club. 27 : 

 197, 1900. 



Aspidium simulatum Davenport. Bot. Gaz. 19: 497, 1894. 

 Athyrium eyclosorum f. HilHi Gilbert. N. Am. Pteridophytes. 

 32, 1901.' 



Athyrium eyclosorum f. strietum Gilbert. N. Am. Pteri- 

 dophytes, 32, 1 901. 



Athyrium Ulix-foemina f. elegans Gilbert. N. Am. Perido- 

 phytes. 33, 1 901. , 



Athyrium Ulix-foemina f. plano-rhoeticum Gilbert. N. Am. 

 Pteridophytes. 34, 1901. 



Athyrium Ulix-foemina f. rectangulare Gilbert. N. Am. Pteri- 

 dophytes. 35, 1901. 



Athyrium Ulix-foemina f. rube Hum Gilbert. N. Am. Pteri- 

 dophytes. 35, 1901. 



Botrychium Coulteri Underwood. Bull. Torr. Bot. Club. 25 : 

 537- 1898. 



Botrychium Jenmani Underwood. Fern Bull. 8: 59, 1900. 

 Botrychium occidental Underwood. Bull. Torr. Bot. Club. 

 25 : 538, 1898. 



Botrychium pumicola Coville. Our Native Ferns, 6th Ed. 69, 

 1900. 



Botrychium tenebrosum A. A. Eaton. Fern Bull. 7: 8, 1899. 

 Botrychium ternatum Oneidense Gilbert. Fern Bull. 9: 27, 

 1 901. 



Cheilanthes amoena A. A. Eaton. Fern Bull. 5 : 44, 1897. 

 Cystoptcris fragilis f. magnasora Clute. Fern Bull. 9:64, 1901. 

 Dcnnstacdtia punctilobula f. cristata Maxon. Fern Bull. 

 7 : 63, 1899. 



Dicksonia pilosiuscula f. schizophylla Clute. Fern Bull. 10, 87. 

 1902. 



Dryopteris aquilonaris Maxon. Bull. Torr. Bot. Club. 27: 63S, 

 1900. 



Dryopteris Gilbcrti Clute. Fern Bull. 8: 67, 1900. 



