No. 11.] THE BRYOPHYTES OF CONNECTICUT. 
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Midrib with 2 median guides, upper band of stereid cells 
Ta Gleinee og aw seek ern ates oc Sadie sce aiaebisea Sean vee Tortula, p 
Midrib with several (4-8) median ealdes and 2 bands 
OF Stéreid) Cells. sissies sis cosas nd Avaes 4S) Oten Seinen Sie Kwon 
Leaf margins revolute, at least below the middle...... 
Barbula, p. 
Leaf margins plane, not revolute............. Tortella, p. 
Calyptra. mitrate: sess aeice nes cd e209 sede Law daw aesikneld one tide 
Calyptra cticullate 0... c.000.. nose csdnee cutee cesnow sewer aus 
Calyptraplicate”sices aaes a0 eles sori evn deta Re oe edes 
Calyptra not plicate ....... 0... ccc cece cence eee e enna 
Calyptra smooth; teeth distantly articulate................ 
Glyphomitrium, p. 
Calyptra hairy; teeth closely articulate. ..Orthotrichum, p. 
Beak long, clavate .................. Encalypta ciliata, p. 
Beak apiculate to aciculate ........... cece eee e eee ees 
Teeth narrowly cleft nearly to the base. .Racomitrium, p. 
Teeth subentire, cribrose or irregularly cleft. .Grimmia, p. 
Teeth of peristome arising from a distinct basal membrane 
Teeth of peristome not arising from a basal membrane.... 
Teeth short; leaves papillose on upper surface............ 
Didymodon, p 
Teeth long; leaves mostly smooth....................05: 
Capsule inclined, distinctly plicate when dry; leaf cells 
roundish quadrate above ................ Ceratodon, p. 
Capsule erect, smooth or slightly plicate when dry; leaf 
cells more or less elongated above..................4. 
Leaves glaucous .........-.. cee eee eee eee eee Saelania, p. 
Leaves bright or dark green, glossy........ Ditrichum, p. 
Plants growing on trees................. Drummondia, p. 
Plants growing on earth or rocks.............-.00e0e- 
Leaf margins strongly involute above, entire. ..Weisia, p. 
Leaf margins plane, minutely crenulate. .Trichostomum, p. 
Inner peristome without a basal membrane............... 
Inner peristome with a distinct carinate basal membrane.. 
Calyptra cucullate .......... 2. ce cece eee eee eee Funaria, p. 
GCalyptta iiitPate: ooo cis ccsdunet sane decal sada Bane Thales 
Calyptra not plicate, smooth, entirely enclosing and 
extending below the base of the capsule............ 
Encalypta contorta, p. 
Calyptra plicate, usually hairy and partially enclosing the 
CAP Stl @) < eis oy cing nau 'ghaid oss Glare ares lereoarey Wea oN wane RG wie 8's 
