No. 11.] THE BRYOPHYTES OF CONNECTICUT. 
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Capsule symmetrical, erect or nearly so; inner peristome 
WING UE cilia. wack falesiret castors acotteee avwslan enw aamnwacrdetne 
Capsule unsymmetrical, more or less inclined and curved; 
inner peristome arising from a broad basal membrane; 
cilia well developed 
Branches strongly complanate; leaves cultriform........ 
Homalia, p. 
Branches terete or somewhat flattened; leaves ovate to 
lanceolate 
Segments either partially or wholly lining the teeth, basal 
membrane lacking or obscure.............00ecececeveee 
Segments entirely free from the teeth.................... 
Leaves with a midrib; stalk rough....Homalothecium, p. 
Leaves without a midrib; stalk smooth....... Pylaisia, p 
Basal membrane broad and distinct...................... 
Pylaisia subdenticulata, p. 
Basal membrane very narrow, or lacking 
Stem oval in cross-section; capsule 3-4 mm. long........ 
Entodon, p. 
Stem round in cross-section; capsule 1.5-2.5 mm. long; an- 
nulus several cells broad............... Platygyrium, p. 
Midrib single cisga-ascelicwous eu oealn de eeenaes Rawk teg-dee os8 
Midrib double or furcate, frequently short or lacking...... 
Lid more or less long-rostrate.........-.2 2. cece eee eens 
Lid conical to short-rostrate........ 0... cece cece cee eee 
Leaves spreading or imbricated..................- ee ceaee 
Leaves complanate .................. Rhynchostegium, p. 
Leaves very concave, spoon-shaped, abruptly filiform- 
ACUMINATE o:y tacaewedn nae ee wees Cirriphyllum, p. 
Leaves plane or slightly concave, acute or gradually 
ACUMINATE. ve gwnee vad aod ee MMe es Heke eee Eurynchium, p. 
Leaves obtuse, apiculate, or acute............ ec cece ee eee 
Leaves acuminate ........... cece eee eee cece eee cence 
Large mosses (6-20 cm.), growing in swamps; stem leaves 
2-3.5 mm.‘long, spreading or imbricated...Calliergon, p. 
Medium-sized mosses (3-8 cm.), growing on rocks and 
earth in or along streams; leaves 0.6-1.6 mm. long, 
frequently secund ...........c. cece eee eee iG wiahuentecciie 
Midrib strong, disappearing abruptly just below apex of 
leat cer eA outa iG duds sue ees Sew Amblystegium fluviatile, p. 
Midrib faint, vanishing near middle of leaf, frequently 
FOPKEM: So sewda vanes tea eck tee es Sees « Hygrohypnum, p. 
LeavéS S@ctind «cui. c cna ses snd ees gaa oe cvee es teens seen 
Leaves equally spreading ............. ccc cece eee eee e eee 
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