54 
Wisconsin Academy of Sciences , Arts and Letters . 
II. Leaves not bordered, or indistinctly. 
A. Annulus present. 
1. Segments and cilia of endostome imperfect , often only 
a laciniate membrane . W. camptotracliela. 1 
2. Segments of endostome not widely open along the keel, cilia 0 or short 
(excl. W. longicolla). 
Inflorescence autoicous.W. acuminata, 1. 
Inflorescence synoicous or dioicous. 
Costa very broad, of leaf base .... W. Cardoti, Ren. 2 
Costa narrow. 
Plants less than 1 cm., seta 5-8 mm., capsule wide - 
mouthed when dry. W. nudieaulis, 11. 
Plants small, seta longer, mouth of capsule constricted 
when dry . . * . W. Bolanderi, 12. 
Plants 2 cm. or more, seta 2-3 cm.W. cruda, 7. 
Inflorescence paroicous. 
[W. nudieaulis may be sought here.] 
Neck shorter than sporangium, cilia 0 . . . W. polyniorpha, 2. 
Neck equaling sporangium, cilia more or less developed. 
Cilia i (or less) height of teeth W. elongata, 8. 
Cilia equaling teeth. W. longicolla, 4. 
3. Segments of endostome split and gaping along keel, cilia well devel¬ 
oped. 
Inflorescence paroicous. 
Capsule pendent, touching seta, not contracted under 
mouth.W. cueullata, 6. 
Capsule horizontal or pendent, not touching seta, con¬ 
tracted below mouth.W. nutans, 5. 
Inflorescence dioicous. 
Upper leaves lance-linear (1:8-10). 
Plants loosely cespitose, in wet soil, 1 cm. high, seta 
1-2 cm. W. Lescuriana, 14. 
Plants solitary or gregarious, sphagnicolous, 8-6 cm., 
seta 3-4cm.W. sphagnicola, 8. 
Uppermost leaves lanceolate (1:4-6). 
Costa reaching apex. W. annotina, 9. 
Costa vanishing. W. coinnmtata, 13. 
1 Renauld & Cardot: Bot. Gaz. xiii. (1888), 199, pi. XVI. 
2 Renauld & Cardot: Bot. Gaz. xiv (1889), 95, pi. XIII. 
