26 HYMENOPHYLLUM SERICEUM. 



Length of frond from twelve to twenty-four inches, breadth 

 three or four inches; the pinnae decayed below whilst fresh and 

 healthy above. 



The whole of this family and that of Trichomanes require 

 growing in a moist shady situation. The soil must be very 

 fibry and spongy peat, to which a small quantity of silver-sand 

 should be added. Two inches of this compost is sufficient, 

 the remainder of the pot being entirely drainage material. The 

 soil should rise above the rim of the pot, and the plants be 

 pegged down upon it. Place the pot in a glazed saucer-pan, 

 and cover with a hand-glass. The plants must always be kept 

 moist, but not stagnant. Keep the glasses clean, and wipe 

 them dry. Under this treatment beautiful specimens may be 

 grown. 



Mr. Sim has obligingly sent me a series of fronds of this 

 species. 



It may be procured of Mr. Sim, of Foot's Cray. 



The illustration is from Mr. Sim's fronds. 



