THE GENEHA OF MOSSES. 
65 
North and South America, and New Holland, possess a 
greater or less number. The species so abundant in this 
country was found bj Mr Brown in Australia, and has 
recently been sent to our friend Dr Hookek, from Nepal. 
A. imberbey found in Ireland, does not appear to differ 
from that in North America. All, we believe, grow either 
on the ground or on rocks. 
Hist. We have adopted the genus nearly according to 
the definition given by Mr Turner in his Muscologia 
Hibernica, and by Drs Hooker and Taylor in the 
Muscologia Britannica, which differs considerably from 
that given by Hedwig. It is the same as Hedwigia of 
Palisot de Beauvois, but more precisely the Schistidiiim 
of Bridel, whose Anidangium^ by the definition, is the 
Hedxmgia of Hooicer. One species, A. ciliatum^ was in- 
deed described by Ehrhart, and by Hedwig in his 
Stirpes, under the name of Hedwigia ; but that name was 
afterwards changed in the Species Muscorum to Anician- 
gium; which species, it may be observed, was called a 
Sphagnum by Dillenius, and made by Linnaeus (under 
the generic name of Bryum) a variety of Grimmia apo- 
carpa. 
In the Species Muscorum seven species are enume- 
rated, of which one only ought to be retained. ScHWyE- 
GRiCHEN, in the Supplement, describes ten, from which 
eight may be rejected ; but, at the same time, two of his 
Gymnostoma should be added. Bridel^s Anictangium, 
on which we shall enlarge in the next genus, contains two 
plants, neither Anictangia nor Hedwigi^e. In this coun- 
try, Mr Turner was the first to adopt the genus, and de- 
scribe one species ; another was added in the Muscologia 
Britannica ; two more in the Musci Exotici ; and one, 
VOL. V. E 
