THE COMMON HART'S-TONGUE FERN. 149 
many-pointed segments. The sori are small and naked, the indusia 
being either wanting, or represented by an indistinct narrow mem- 
brane, never, apparently, approaching a complete or perfect state. 
The fronds are very coriaceous, rendering the venation obscure. It 
was found in Guernsey, by Mr. James of Vauvert. 
Striatum Series. 
3. striatum (M.). A broadish sublanceolate permanent variety, 
somewhat indistinctly crenate and slightly undulate, but otherwise 
of normal outline. The fronds are obliquely streaked, or flaked 
with yellowish green on a dark green ground, which gives them a 
distinctly variegated appearance. It was found in Guernsey by Mr. 
James. Another form, with paler streaks, has been found in 
Guernsey by Mr. C. Jackson; a third, striped and mottled with 
straw-colour, has been met with also by Mr. Jackson, at Barnstaple, 
in. Devonshire ; and a fourth form, which is tolerably permanent, has 
been obtained by Mr. Wollaston, at Littlehampton, Sussex. 
4. fallax (M.). A small growing form, with sinuate-interrupted 
or somewhat wavy fronds, which are more or less discoloured in 
streaks, the whole surface having a dull mealy appearance, though 
not really pulverulous, but roughish and lustreless. It was found 
at Ottery St. Mary, Devonshire, by Mr. Wollaston. 
Sagittifolium Series. 
5. hemionitoides (M.). This variety appears to have short subhastate 
fronds, which are of thickish texture; in the specimen before us, 
they are not quite five inches long, the sides curving to the point, the 
base being enlarged and cordate, with the lobes diverging and blunt- 
pointed, thus presenting an outline something like the less developed 
examples of the South European Scolopendrium Hemionitis. It was 
found near Nettlecombe, Somersetshire, by Mr. C. Elworthy. 
6. hastatum (M.). This is a very elegant dwarf form, growing 
three to five inches high : we have seen two states slightly different. 
The best of these has the frond narrowish but rather broadest 

