BOTRYCHIUM. 
191 
healed. The nature of it is to dryve away great swell- 
ings, and to prevent extreme inflammation.” 
This fern is extremely difficult to keep alive in the 
fernery ; it can only be transplanted safely by taking a 
large sod with it, of a depth greater than that reached 
by the roots, and it is not ornamental enough to make 
it worth while to be at great pains. 
The Adder’s-tongue is found in temperate climates all 
over the world. 
47. Ophioglossum vulgatum, L., vai\ angustifolram. 
Marrow-leaved Adder’s-tongne. 
This permanent variety of the common Adder’s-tongue 
is peculiar to J ersey, and is described by Mr. Moore as 
0. Lusitanicum. Sir William Hooker is less satisfied of 
the permanence of its differences than other authors 
seem to be, having specimens of the common AdderV 
tongue from Orkney verging very near to the narrow- 
leaved variety. 
In the Jersey specimens the frond is narrow, and 
there is frequently a second frond springing from the 
root, without any spike annexed. 
BOTRYCHIUM. 
Gen. Char. “ Capsules subglobose, sessile, clustered at the 
margin and on the side of a pinnated rachis, 1-celled, compressed, 
opening transversely. Involucre none .” — Sir W. Hooker. 
48. Botrychmm Lunaria, Sw. Common Moonwort. 
Caudex one with the stem ; frond oblong, pinnate, leaflets 
crescent-shaped, toothed ; spike compound, capsules sessile, 
clustered. 
