ASPLEXIUM LANCEOLATUM. 39 
lower end taper off gradually into a fine foot-stalk ; 
they have a slightly twisted mid-vein, from which 
proceed forked side-veins, one to each division between 
the teeth. The fructification, or son, is in irregular- 
placed masses, several on each leafit, at first longish 
oval in form, but gradually running together, and 
spreading over nearly the whole leafit, and becoming of 
a rusty brown ; the cover or membrane (indusium) is 
oblong, whitish, with a jagged margin, always sepa- 
rating at the side towards the mid-vein. The spores, 
or seeds, are ripe in August and early in September. 
This species is found in the crevices of rocks and on 
old walls in the south of England. Upon rocks on 
the north side of the Isle of Jersey, and other parts of 
the Channel Islands ; about St. Ives and other places 
in Cornwall ; at Tonbridge Wells and its vicinity ; and 
in a few places in Oxfordshire, Devon, Gloucestershire, 
Sussex, Somerset, Carnarvonshire, Denbighshire, Gla- 
morganshire, Merionethshire, and Pembrokeshire. Mr. 
Bolton states that he found it on a wall in a village 
near the river Wharf in Yorkshire, and Link says it 
occurs near Gilphead, in west Scotland, and in Ireland, 
but these localities require confirmation. Mr. Sweet, ia 
his " Bristol Flora," says it occurs there in " Old bury 
Court Woods, and in lanes about Stapleton. The area 
of this plant is not more than half-a-mile, occurring on 
the Old Red-Sandstone." 
Sometimes the outline of the frond becomes almost 
triangular, the lowest leaflets being the longest, and it 
is then very much resembling Asplenium adiantum- 
