No. II.] THE BRYOPHYTES OF CONNECTICUT. 
51. 
52. 
53. 
54. 
55- 
56. 
57. 
Leaf cells isodiametric above the middle; calyptra 
CUCUMAL er io5.f hashed asceie ne ie eeaeeiios 4 Adaline Ban OO Pottia, p. 
Leaf cells elongated above the middle; calyptra mitrate 
Stalk almost lacking...............00. Aphanorrhegma, p. 
Stalk long (to 2 cm.)............0 ee eee Physcomitrium, p. 
Capsule symmetrical or nearly SO............. 0. cece eee 
Capsule strikingly unsymmetrical ............... 0000s eee 
Teeth of peristome 4...........00cc cece cence Georgia, p. 
Teeth of peristome 32 or 64......... 00 cece eee e eee e ee eeees 
Calyptra cucullate, nearly smooth.......... Catharinza, p. 
Calyptra mitrate, densely hairy.................eeee eee 
Capsule without stomata, cylindrical...... Pogonatum, p. 
Capsule with stomata, prismatic or cylindrical.......... 
Polytrichum, p. 
Capsule sessile; leaves green and conspicuous. .Webera, p. 
Capsule raised on a thick, red stalk; leaves colorless and 
VeLY MINUte: 23 ee eens ee ee einem eers Buxbaumia, p. 
[ PLEUROCARPI ] 
Leaves-distichOus: isis<<caaenice wren heacun o4 4 Fissidens, p. 
Leaves in 3. or more ranks ccsscccas canara e equ Ye enews 
Segments of inner peristome rudimentary or filiform, not 
Splits, Cilia: HONE: xs. aeici tag ariel occa eetiacamiecet rm sranedis ey anelens 
Segments of inner peristome distinctly carinate, often split 
along the ‘keel. « cesy ca ccusbkeetne die nyse dae ie ae dae 
With a distinct, carinate basal membrane, segments very 
rudimentary; leaves papillose................. Thelia, p. 
Without a basal membrane; leaves smooth or nearly so.. 
Segments connected, at least in the apical region, by 
transverse bands: <ssee sss cuaecda dagese ead sess ad eee 
Segments entirely free, sometimes very rudimentary...... 
Leaves with an excurrent midrib........... Dichelyma,.p. 
Leaves without a midrib.................... Fontinalis, p. 
Leaves complanate, transversely undulate..... Neckera, p. 
Leaves spreading, not transversely undulate.............. 
Plants soft, often forming wide, velvety tufts; capsule 
strikingly contracted below the mouth when dry...... 
Anacamptodon, p. 
Plants coarse, growing in lax, frequently pendent tufts; 
capsule not contracted below the mouth when dry...... 
Leavés witha. midribwacccnes ves swed ni5 tw tare ae deca sew een 
Leaves without a midrib..................., Leucodon, p. 
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