2lKI HARDY I'EUKS. 



(Margined), lias fronds only an inch wide and about a foot 

 long; the margin appears double, as though one frond was 

 laid on the top of the other. S. v.fissum (Cut), fronds deeply 

 and regularly cleft along the sides. S. v. inacrosorum (Large- 

 fruited), fronds a foot or more long, with irregular margin, 

 often showing the spore-masses on the upper side. S. v. cris- 

 tatum (Crested), points of the fronds divided into wide- 

 spreading tassels. S. v. cornutum (Horned), the midrib in 

 this case is developed into a sort of horn, projecting from 

 the upper surface of the frond a little way from the apex. 

 8. v. subcornutum, the fronds branch irregularly, and often 

 produce a horn-like projection of the midrib on the under side. 

 S. v. reniforme (Kidney-shaped), this is sufficiently described 

 by the name ; the fronds are reduced wonderfully in size. 

 S. v. proliferum (Proliferous), fronds only a few inches long, 

 sometimes reduced even to the midrib without any blade at 

 all. S. v. fcecundum, this is another small-fronded form, which 

 often produces young plants upon the fronds. S. v. rugosum 

 (Rough), the upper surface of the fronds, which arc 6 or 

 8 inches long, rough, with numerous blunt projections. 

 S. v. palmatum (Divided like a hand), fronds very variable 

 in shape, often divided near the base into two or three, and 

 then again divided towards the apex. These are a few only 

 of the most marked varieties, and these at least should be in 

 every collection. Those who have the space, and wish for it, 

 may largely increase their number ; we therefore add the 

 names of a few more: Undulato-lobatum (wavy and lobed), 

 ramo-marginatum (forms a dense tuft), fimbriatum (fimbriated 

 along the narrow fronds), glomeratum (forming a close mass of 

 fronds 2 or 3 inches long), variabile (a name which might be 

 applied to many of the varieties), supralineatum (with two 

 lines along the upper surface midway between the midrib and 

 margin), &c. 



When a plant has become large it may be increased readily 

 by division. Take the plant up, and shake off all the soil, 



