SPECIAL WAYS OF GROWING FERXS. 113 



white, and covering both the upper and under surface of 

 the fronds ; fr. 10-20 inches long, appearing mouse-colored, 



G. ptilchella, Linden (Hk., Fil. Ex., PI. 74). From Venezue- 

 la: powder white; fr. dark green above, 10-30 inches 

 long, 12 inches broad, often forking. A beautiful plant. 



G. snlphitrea, Dcsv. (Lowe, vol. i., PI. 5). From the West 

 Indies : powder bright yellow; fr. 6-10 inches long. 



G. triangnlaris, Kaidf. (Eaton's Ferns of N. A., to be fig- 

 ured : Hk., Fil. Ex., PI. 10). From California: powder 

 yellow, rarely white ; fr. raised on stalks 3-10 inches long, 

 triangular, 1-3 inches wide. This species requires great 

 care in cultivation. 



G. calonielanos^ KanJfi. (Hk., Card., F., PI. 30). From the 

 West Indies: powder white; fr. 10-30 inches long, 3-8 

 inches broad. One of the commonest in cultivation, 



Notholcena 7iivea, Dcsv. (Lowe, vol, i., PI. 19), From 

 Mexico, &c. : resembles N. dealbata, PL 2 of this book; 

 powder white ; fr, 4-10 inches long. Easily managed. 



N.fiavejis, Moore (Hk., Fil. Ex., PI. 47). From Central 

 America: powder yellow; fr. 6-10 inches long. The 

 same as A\ chrysophylla^ Ho?'t. 



Cheilantlies farinosa, Kaulf. (Hk. and G,, Ic. Fil., PI, 134). 

 From the tropics : powder white ; fr, 6-15 inches long. 



Adia7ttu7}i S7ilphureji7n, Kaulf. (Lowe, vol. ix., N, and R. F,, 

 PI. 61), Hooker considers this to be a variety of A, 

 ^thiopiciwi, L. From Chili: powder yellow; fr. 6-12 

 inches Ions;. Difficult to manao;e. 



•-> o 



II. Fronds without any Powder. 



Gyr7i7iogra77i77ie to7;ie7ttosa, Desv. Fr. 10-20 inches long; 

 dark, hairy. 



N'othol(X7ia Newberryi, Eato7i (Eaton's F. of N. A., to be 

 figured). From United States: fr. white, woolly, 6-12 

 inches long, about 2 inches broad. A charming plant. 



