REGIONAL DISTRIBUTION OF MOSSES. 293 
anum of the North (800 to 1,200 feet altitude). On the still lower ridges 
and terraces south of the Tennessee Valley are found the Southern— 
Fabronia spp. Bruchia curviseta. 
Cryphaea sp. Funaria flaricans. 
Thelia asprella. Physcomitrium turbinatum langloisii. 
Thelia lescurii. Clasmatodon parvulus. 
Bruchia sullivantii. Thuidium microphyllum. 
Bruchia nigricans. 
with the Northern 
Climacium americanum. Campylium chrysophyllum. 
Brachythecium laetum. Stercodon curvifolius. 
Campylium hispidulum. 
Of aquatic mosses, Fontinalis lescurii is common throughout the 
mountain region from an elevation of 800 to 2,000 feet. The eastern 
and most southern of the Appalachian ranges traversing the basin of 
the Coosa River where the obdurate sandstones and flinty cherts pre- 
vail, the arid flanks covered with open pine forests, are aS poor in 
mosses as the rolling pine barrens of the Maritime pine belt. Consid- 
ering the large area unfavorable to the vegetation of mosses, it is not 
to be expected that the moss flora will be found as rich and luxuriant 
as in most of the Middle and Northern Atlantic States. 
In the Louisianian area only the lower division of the Coast pine 
belt has been closely searched for mosses. In the Coast plain, with its 
ample rainfall, mosses become again more abundant. Many of the 
declivities of the pine-clad hills and the depressions between them, of 
the exposed swampy banks of the pine-barren streams, and of the flats 
bordering the swamps in the plain, are covered with peat mosses 
(Sphagnum) of various kinds. The greater part of them are common 
from the Gulf to the Canadian lakes. Such are: 
Sphagnum rufescens. Sphagnum medium. 
Sphagnum recurvum. Sphagnum imbricatum cristatum. 
while others are confined to the subtropical region, namely: 
Sphagnum macrophyllum. Sphagnum mobiliense. 
Sphagnum microcarpum. Sphagnum mohrianum. 
Sphagnum ludovicianum. 
In the open flat pine barrens of the Coast plain flourish during the 
winter and the first days of spring the following, mostly Southern 
types: 
Brauchia donnellii. Bruchia curviseta. 
Bruchia sullivantii. Astomum ludovicianum. 
Bruchia ravenelii. Fissidens donnellii. 
Bruchia drummondit. Fissidens rarenelii. 
Besides these the following of Northern distribution: 
Fissidens minutulus. Fissidens subbasilaris. 
Fissidens taxifolius. 
