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r OLYStlCII I; M A N G U LA RE. 



I'ig. 137.— Apex of Frond and middle pinna. 



FoRMOSUM, Lowe. (Fig. 137.) — Found in Devonshire by 

 the late Mr. Charles Jackson, of Barnstaple, and now in the 

 possession of Mrs. Thompson, of South Lawn, Exeter. Mr. 

 Wollaston, to Avhom I submitted this Fern, says that it is 

 quite new to him, and suggests Formosum for its name, which 

 I have adopted as singularly appropriate. It is an elegant 

 slcnder-fronded form, with fronds fourteen or fifteen inches in 

 length, and scarcely three inches and a half in width in the 

 widest part; branching at the apex, and the apices of the 

 branches cristate. Colour vivid grassy green. Very leafy and 

 of a plumose character. About twenty pairs of pinna3 below the 

 branching apex, the branching portion having six or seven more 

 pairs, and then branching into crests. Narrow fronded, widest 

 in the centre, gradually narrowing slightly to the base, where 

 two inches and a half wide, and more rapidly to the apex, 

 immediately below the point of branching not an inch wide. 



