—2 7— 



Clute, W. X. Rare Forms of Ferns. — /. A. Round- 

 leaved Royal Fern, illust. Fern Bulletin. O. 1906 — 

 A new form from Vermont named orbiculata. 



Clute, W. N. The Genus Olcandra, illust. Fern 

 Bulletin. O. 1906. 



Dowell, P. Observations on the Occurence of 

 Bootfs Fern. Torreya. O. 1906. 



Eaton, A. A. Pteridophytes Observed During Three 

 Excursions into Southern Florida. Torrey Bulletin, 

 1906. 



Fellows, D. W. The Fern Flora of Maine. Fern 

 Bulletin. O. 1906. 



Ferriss, J. H. Cause of Rusted Fronds. Fern 

 Bulletin. O. 1906. 



Ferriss, J. H. On Cultivating Our Ferns. Fern 

 Bulletin. O. 1906.— Xote on the behavior of various 

 rare species in cultivation. 



Gilbert, B. D. Poly podium vulgarc var. alato-multi- 

 Hdum. Fern Bulletin. O. 1906. — Description of a 

 new variety from Mauch Chunk, Pa. 



Griggs, R. F. A Diurnal Rotation in the Leaves of 

 Marsilia. Ohio Naturalist. Je. 1906. — Records the 

 rotation of the leaflet in M. vestita in order to face the 

 sun. 



Hans, A. Acrostichum and Platy cerium, illust. Hor- 

 ticulture. Ap. 14, 1906. 



Hans, A. Filmy Ferns, illust. Horticulture. Je. 10, 

 1906. 



Negley, H. H. Where Florida Ferns Grow. Fern 

 Bulletin. O. 1906. 



Palmer. T. C. Asplenium ebenoides in Chester Val- 

 ley. Pa, Fern Bulletin. O. 1906. — Record of its oc- 

 currence in Chester County. 



Puffer, Mrs. J. J. The Rusty Woodsia in Cultivation. 

 Fern Bulletin. O. 1906. 



Squires, W. A. A New Station for Selaginella 

 Douglasii. Fern Bulletin. O. 1906. — First report of 

 this species from Idaho. 



