74- Cheilanthes fibrillosa Dav. Very rare. San Jacinto 



Mountains, California. 



75- Cheilanthes gracillima D. C. Eaton. Mountain 



Lace Fern. Tolerably common; in clefts of 

 rocks. California to British Columbia and Idaho ; 

 also in Guatemala. 

 76. Cheilanthes lanuginosa Nutt. Not uncommon: on 

 exposed rocks. Minnesota to British Columbia. 

 Illinois, Texas, Arizona and New Mexico. — 

 Cheilanthes gracilis Mett. ; C. Feei Moore. 



INDEX TO RECENT LITERATURE. 



Readers are requested to call our attention to any omis- 

 sions from this list. 



Brodie. W. A Xezi' Station for a Xorthem Fern. On- 

 tario Natural Science Bulletin, May, 1906. JVoodsia 

 hyperborea in Ontario. 



Clute. W. X. A Check List of Xorth American Fern- 

 zi'orts. Fern Bulletin. April, 1906. A continuation. 



Clute, W. X. Poly podium piloselloides, illust. Fern 

 Bulletin. April, 1906. 



Clute, \Y. X. The Author Citation. Fern Bulletin, 

 April, 1906. 



Clute, \Y. X. The Forms of the Cinnamon Fern. Fern 

 Bulletin. April. 1906. Suggests the name of Osmunda 

 cinnamomea bipinnatifida for a dissected form. 



Dukes, W. C An Alabama Station for Botrychium 

 biternatum. Fern Bulletin. April. 1906. Xotes on the 

 habitat, growth, and fruiting of this plant. 



Gilbert, B. D. Polypodium vulgare and Its Varieties in 

 America. Fern Bulletin. April, 1906. Description of 

 fifteen varieties, four of which are new. 



Maxox, W. R. A New Name for a Jamaican Fern. Pro- 

 ceedings of the Biological Society of Washington. Oct. 

 T 7- J 9°5- Proposes Acrostichum excelsum for A. loma- 

 ri aides. 



ROONEY, B. M. The Resting of Botrychium. . Fern Bui- 



