No. Ir.] THE BRYOPHYTES OF CONNECTICUT. I2I 
New Haven: Hamden, Evans; Meriden, Eaton; Milford, 
FHlarger; New Haven (1855) and Orange, Eaton; Oxford, 
Harger; Woodbridge, Nichols. Muppiesex: Killingworth, 
Nichols. 
New Brunswick to Nebraska, south to Georgia ; California ; 
Europe; Asia; Africa. 
‘Rer. Eaton, 15, 63. 
FAMILY MNIACEZ 
Mnium (Dill.) L. 
I. Leaf cells not arranged in oblique rows; border of leaves 
several cells thick; marginal teeth in pairs.............. 2 
Leaf cells tending to be arranged in diverging rows, 
gradually increasing in size from the border toward the 
Midrib desniccsveanereregedaesa ines Sia ie San Bima Dito wnat yce 5 
2. Lid strongly convex, mammiform or apiculate; midrib 
toothed at back .......... fedahecdiasé-wiareoaeeeaietas ....M. hornum 
Lid rostrate cc6cj ccunesncawedios a4 Seema er 3 
3. Midrib smooth at back; monoicous (synoicous).......... 4 
Midrib toothed at back; dfoicous........ M. orthorrhynchum 
4. Perichztial leaves forming a rosette, not crispate when 
dry; capsules borne in clusters.......... .....M. spinulosum 
Perichetial leaves not forming a rosette, crispate when 
dry; capsules borne singly.................- M. marginatum 
5. Leaves serrate, teeth single, border one cell thick........ 6 
 SRCAVESEREEE: ecaicice didowini sesnoscaio witness irsionti-aoe hui shan en eat nace uabatesoie II 
6. Monoicous (SynOicous) ....... cee cece eee ete e ete 7 
Didicous) 250. ensewscteeaes seece seeds cosseesy ieee aeewews 9 
7. Lid rostrate; stomata scattered over the entire capsule.. 
M. rostratum 
Lid strongly convex, apiculate; stomata present only on 
fleck: of capsule’ oisassniccnaacoiasiusteme pores ae wreninne wma 8 
8. Capsules borne singly; leaves serrate to middle. .M. cuspidatum 
Capsules borne in clusters; leaves serrate to base..M. medium 
9. Margin of leaves obscurely toothed............... M. rugicum 
Marginal teeth of 24. celles ceecuc-snese ewe onsaratraeaians Io 
10. Marginal teeth robust ................. aarevaiets a suessuane ss M. affine 
Marginal teeth slender ........... cece eee e eee eee eee M. ciliare 
11. Border narrow, scarcely thickened, of one layer of cells.. 
M. cinclidioides 
Border broad, thickened ...................... M. punctatum 
