178 BULLETIN OF THE UNIVERSITY OP WISCONSIN. 



Spores reticulate B. Texana, 48. 



Spores papillose B. Bolanderi, 46. 



Distinctly papillose B. Donnellil, 48. 



2. Capsule immersed. 



Spores pitted B. Carolinae.^ 40. 



Spores reticulate. 



Calyptra popillose B. Barenelii, 49. 



Calyptra smooth B. Drnmmondii,' 48. 



B. Beyrichiana Mull, is rejected as mixed and uncertain; B. Uam-p- 

 eana Mull, is a Chilian species. 



ASTOMUM, p. 51. 



Leaves not crispate when dry. 

 Capsule chestnut-brown, ovoid .... A. nitidnlam, 52. 

 Capsule orange, oval .... A. nitidnlnin, var., 52. 



Leaves crispate when dry. 

 Capsules often clustered (2-3), oblong oval . A. LadoTiciannm, 52. 

 Capsule solitary. 

 Brown globose, capsule immersed ... A. crispnm, 51. 



Brown globose, capsule exserted ... A. Drnmmondii, 4I. 

 Orange, sub-globose, immersed . . .A. SnlliTantii,' 52. 



GYMNOSTOMUM, p. 52. 



Lid long remaining attached to columella, capsule thick- 

 walled, with 6-8 rows of transversely elongated cells 



at the mouth G. cnrvirostre, 53. 



Lid falling early, capsule thiu-walled, with 3-4 rows of transversely elon- 

 gated cells at mouth. 

 Plants 1-2 mm. high, lid conic ..... Gr. tenue, 54. 

 Plants 5-10 mm. high, lid subulate, costa 24 — 35// wide 



at base with 2 guides^ G. calcareum,' 53. 



Plants 1-7 cm. high, costa 70/i wide at base, with 4-6 



guides « G. rupestre, 53. 



' IncL B. brevieollis L. & J. Man. 47. 



^ B. Ravenelii mollis L. & J. Man. 49. Puller description, Appendix no. 40. 



' B. brevipes L. & J. Man. 48. S. brevipes Hook, is African. 



* A . Sullivantii is probably a variety of A. crispum. Most American specimens seem 

 to be referable to A. Sullivantii. (Ren. & Card.) 



' As far as can be determined G. platyphyllum Kindb. (Appendix no. 44) falls here. 



• See explanation under Dicranum, p. 181. 



