MOSSES WITH A HAND-LENS 1* 



5. Acrocarpous, Dicranum. 



Pleurocarpous • 



Brachythecium, Raphidostegium, Hyloconuum, Hyp- 



nura, Plagiothecium. 



C 



1. Blackish-green to brownish-green, 2. 



Green. 3- 



2. Capsules exserted, Weissia Americana. 



Capsules immersed, Hedwigia. 



3. Flattened; leaves two-ranked, .... Fissidens. 

 Leaves spreading in all directions 4- 



4. Capsules ovoid to oblong, unsymmetric, . Brachythecium. 

 Capsules subcylindric, not furrowed when dry, 



1 )icranum. 



Capsules subglobose, deeply furrowed when dry, . 



Bartramia, Philonotis. 



D 



1. Long, slender, and floating, Fontinalis. 



Short, not more than one or two inches in length, . 2. 



2. Leaves ovate; operculum long beaked, . Rhynchostegium. 

 Leaves ovate; operculum conic, . . Brachythecium. 

 Leaves orbicular, operculum conic, . Hypnum dilatatum. 



E 



In wet shaded places 



Catharinea, Fissidens, Gymnocybe, Mnium, Hypnum, 



Plagiothecium, Climacium. 



In moist shaded places 



Catharinea, Hypnum, Thuidium, Hylocomium, Eu- 

 rhynchium, Plagiothecium, Brachythecium, Webera, 



Pogonatum, Leucobryum. 



In dry open places with grass, . . .... 



Polytrichum, Cirriphyllum, Pleuridium, Thuidium. 

 In dry waste places, old paths, old ploughed fields, etc., 



Pogonatum, Ditrichum, Trematodon, Ceratodon, Fu- 



naria, Physcomitrium, Bryum. 



In various situations 



Dicranum, Dicranella, Leptobryum, Thuidium, Hylo- 

 comium, Buxbaumia, Leucobryum, Bryum. 



