333 
discovered m Canada in the year 1819* 
Osmunda alata ; frondibus sterilibus ovato-lanceolatis pinnatis, 
pinnis pinnatifidis patentibus, stipite alato lanato, fructifican- 
tibus bipinnatis lanuginosis. 
*v 
Hah. Canada, — Isle of Montreal and Grand River ; but 
rare. 
This plant attains to much larger dimensions than the Osmuiu 
da cinnamomea {Claytoniana of Linnaeus and Smith), to which 
it is assuredly very closely allied, but from which it is distin- 
guishable at once by the much broader outline, more patent pin- 
nae, and above all by the slender zig-zag winged stipes. 
CRYPTOGAMIA FILICES. 
Aspidium. 
Sort subrotundi sparsi. Indusium umbilicatum vel uno latere 
dehiscens. 
Aspidium Goldianum ; frondibus ovato-oblongis glabris pinna- 
tis, pinnis lanceolato-acuminatis pinnatifidis, laciniis oblongis 
spinuloso-serratis, stipite paleaceo. 
Aspidium Goldianum, Hooker’s MSS. 
Hah, Near Montreal. 
From one and a half to two feet in height. Allied to Aspi- 
dium cristatum more than to any other species in the genus ; 
but abundantly distinguishable by the greater breadth of the 
frond, which gives quite a different outline, and by the form of 
the pinnae, which aje never broader at the base, but are, on the 
contrary, narrower than several of the segments just above 
them, These segments, too, are longer and narrower, slightly 
falcate, and those of the lowermost pinnae are never lobed, but 
simply serrated at the margin. The serratures are likewise ter- 
minated by more decided, though short, spinules. The fructijU 
cations are central near the midrib, and this circumstance pre- 
vents the species from bearing, as it would otherwise do, no in- 
considerable affinity to A. marginale. 
Specimens of this plant, cultivated in the Botanic Garden at 
Glasgow, from roots which I brought from Canada, retain aU 
the characters which I have above described. 
