48 American Fern Journal 



b. Botrychium ternatum var. rutaefolium (A. Br.) 

 D. C. Eaton. 



These plants are much smaller than any hitherto 

 recorded. The height of the smallest plant is 6.5 cm., 

 while its sterile segment is only 4 cm. long by 2.5 cm. 

 wide. The sterile segment of the previous year, which 

 is still attached to the plant, is only 1.2 cm. wide. 



c. Phegopteris Robertiana. (Hoffm.) A. Br. 



This is a new station for this rare fern. Although 

 growing on sandstone and somewhat smaller than other 

 plants, the prescence of stalked glands on the stipe and 

 rachis show it to be P. Robertiana. 



d. Dryopteris spinulosa var. dilatata (Hoffm.) 

 Underw. * • 



Nos. 1212 and 1731 have smooth indusia. According 



to the new Gray's Manual this would therefore be: Aspi- 



dium spinuloswn (0. F. Mueller) Sw. var. diJ^tatam 



(Hoff.) Hook, forma anadenium Robinson. In the ** 



writer's opinion a much better designation would be 



Dryopteris dilatata (Hoff.) Gray, forma anadenia 

 comb, now 



ft 



e. Filix bl-lbifera (L.) Underw. 



This is probably the farthest northwest station for 

 this fern. It is rather remarkable that a rock-loving fern 

 should have been found in an arbor-vitae swamp. The 

 fronds vary somewhat,, but it is typical bulbifera as found 

 m Ohio and other limestone regions, where it is to be 

 found in abundance. 



L. S. Hopkins. 



♦i 



• 



Pittsburgh, Pa., Feb. 12, 1913. 



