and rachises; to which may be added, more rhomboid pinnae, 
never auriculated at the superior base. Mr. Hewett Watson in¬ 
deed has the following remark, which, coming from such a seeker 
of truth, deserves recording here:—“ A rupestral species, sel¬ 
dom found above the agrarian region, gradually giving place to 
its very near ally A. viride on the acclivities of the mountains. 
A specimen is in my herbarium of A. Trichomones from Ful- 
larton, Forfarshire, which approximates to the larger and more 
austral species, A. anceps. Indeed, if A. viride and A. anceps 
had been the commoner species, well known and named before 
A. Trichomanes was discovered, this last would have stood a good 
chance of being pronounced an intermediate and perhaps uni¬ 
ting variety.” Cybele Brit. v. 3. p. 277. 
Abroad, the geographical range of this species is very consi¬ 
derable, in warm countries probably (for the elevations in such, 
are seldom faithfully recorded) peculiar to mountain regions, so 
as probably pretty nearly to correspond with the range of mean 
temperature accorded to it by Mr. Watson in Britain, viz. 
52°-42°, and to an elevation with us from the level of the sea to 
650-700 yards in North Wales. Such laws, however, are not 
so much to be depended upon in the case of Ferns and crypto- 
gamic as to the phsenogamic plants. 
Our recently-published volume of ‘ Species Filicum 5 (vol. iii.) 
gives, as countries inhabited by this almost ubiquitous species, 
“ Throughout Europe, Caucasus, and the Tauria, Greece; South 
Africa; New South Wales, Bathurst, Paramatta, Victoria, etc.; 
Tasmania; Persia (Ghilan, Aucher-Eloi) ; East Indies, Kashmir, 
Ladak, Mussoorie, and Afghanistan in the west, through the 
range of Himalaya to Bootan in the east, at elevations between 
6-12,000 feet; North America, Canada, United States, Rocky 
Mountains, and west to the coasts of the Pacific; Mexico and 
New Mexico, Andes of Peru, New Granada, Andes of Ecuador, 
Guatemala ; Sandwich Islands (. A . densum , Brack.); West Indies, 
Cuba and Jamaicato which countries has since been added 
New Zealand, mountains in the Middle Island, Sinclair , Travers. 
Plate 2 \ J . Fertile fronds of Asplenium Trichomanes , Linn .,—natural size. 
Fig. 1. Fertile pinna, seen from beneath,— magnified. 2. Single sorus ,—more 
magnified. 
