CASSEBEEEA. 



23 



and its spore-bearing or fertile pinnae being of a comb-shape, 



and narrower towards the stems. Easily increased by division. 



C. DEALBATA (Powdered). A very neat small-growing 



species, dusted over with white powder ; nearly related to 



C. farinosa, and almost as 

 pretty. It is a native of 

 Mexico. It is sometimes 

 called C. pulveracea. 



C.FAEINOSA (Mealy), Fig. 

 10. Native of Nepaul. This 

 is perhaps the handsomest 

 Fern in cultivation. The 

 fronds are beautifully green 

 on the upper surface ; and, 

 when turned upwards, may 

 be seen to be of a pure white 

 or powdery appearance. The 

 fronds in shape are triangular, 

 with black stems. They are 

 bipinnated, or twice-divided, 

 about a foot long, adhering 

 to a short erect rhizome. 

 Some cultivators of Ferns 

 are very successful in raising 

 this truly beautiful Fern from spores. It does not increase 

 easily by division. As it is a moderate-sized Fern it ought 

 to be in every collection. 



C. INTEAMAEGINALIS (Within the margin, referring to the 

 sori). A beautiful Mexican Fern, nearly hardy enough for the 

 greenhouse, only it loves a moist heat, which the greenhouse 

 when well managed never affords. It thrives much better in 

 a close moist heat in a stove. Easily distinguished from its 

 fellows by its slender continuous spore-masses, which are just 

 within the margin of the frond. It is a beautiful Fern, but 

 rather delicate. The fronds grow a foot long, and are bipin- 



Fig. 10. 



Cassebeera farinosa. (Pinnae 

 full &ize.) 



