114 BIOLOGICAL SOCIETY OF WASHINGTON. 



Pogonatum brevicaule, Brid. 

 " umigerum, Brid. 



Polytrichum commune, L. 



" juniperinum, Willd. 



perigoniale, Michx. 

 " formosum, Hedw. 



" piliferum, Schreb. 



15. BUXBAUMIE2E. 



Diphyscium foliosum, Mohr. 

 Buxbaumia aphylla, L. 



b. C'ludocuriti. 



16. FONTINALE.E. 



Fontinalis biformis, Sull. 

 Dichelyma subulaturn, Myrin. 



" capillaceum, Br. Sch. 



c. Plenrocarpi. 



17. NECKERE^l. 



Cryphaea glomerata, Br. & Sch. 

 Neckera pennata, Hed\v. 

 Leptodon trichomitrion, Mohr. 



18. LEUCODONTE^l. 



Leucodon julaceus, Sull. 



" brachypus, Sull. 



Clasmatodon parvulus, Sull. 



19. LE8KE2E. 



Thelia hirtella, Sull. 

 asprella, Sull. 

 " Lescurii, Sull. 

 Leskea obscura, Hedw. 

 " polycarpa, Ehrh. 

 " denticulata, Sull. 

 " tristis, Cesat. 

 Anomodon rostratus, Schimp. 

 " attenuatus, Hub. 



" obtusifolius, Br. & Sch. 



20. ORTHOTHECIE^:. 



Platygyrium repens, Br. & Sch. 

 Pylaisia intricata, Br. & Sch. 

 " velutina, Br. & Sch. 



