3. Mosses gradually diminish in number towards the arctic cir<g xmlns="http://www.tei-c.org/ns/1.0" ref="#typoHyphen" /><lb xmlns="http://www.tei-c.org/ns/1.0" break="no" />cles, and become also fewer towards the <placeName xmlns="http://www.tei-c.org/ns/1.0" ref="https://edition-humboldt.de/H0009532 http://d-nb.info/gnd/4060997-2">tropics</placeName>, unless in <lb xmlns="http://www.tei-c.org/ns/1.0" />mountainous or moist climates. In <placeName xmlns="http://www.tei-c.org/ns/1.0" ref="https://edition-humboldt.de/H0010829">temperate regions</placeName> they <lb xmlns="http://www.tei-c.org/ns/1.0" />abound: & they there grow at every altitude fom the level of <lb xmlns="http://www.tei-c.org/ns/1.0" />the sea to <add xmlns="http://www.tei-c.org/ns/1.0" place="superlinear">the limits of</add> perpetual snow.