114 I BIOLOGICAL SOCIETY OF WASHINGTON. 



Pogonatum brevicaule, Brid. 

 " umigerum, Brid. 



Polytrichum commune, L. 



" juniperinum, Willd. 



" perigoniale, Michx. 



" formosum, Hedw. 



" piliferum, Schreb. 



15. BUXBAUIVIIE.E. 



Diphyscium foliosum, Mohr. 

 Buxbaumia aphylla, L. 



b. 4'3a<t4M*:ii'g:i. 



16. EONTTNALE.2E. 



Fontinalis biformis, Sull. 

 Dichelyma subulatum, Mjrin. 



" capillaceum, Br. & Sch. 



c. Pleurocarpi. 



17. NECKEEEffi. 



Cryphaea glomerata, Br. & Sch. 

 Neckera pennata, Hedw. 

 Leptodon trichomitrion, Mohr. 



18. LEUCODONTE^;. 



Leucodon julaceus, Sull. 



" brachypus, Sull. 



Clasmatodon parvulus, Sull. 



19. LESKE.E. 



Thelia hirtella, Sull. 



" asprella, Sull. 



" Lescurii, Sull. 

 Leskea obscura, Hedw. 



" polycarpa, Ehrh. 



" denticulata, Sull. 



" tristis, Cesat. 

 Anomodon rostratus, Schiinp. 

 " attenuatus, Hub. 



" obtusifolius, Br. & Sch. 



20. ORTHOTHECIE.E. 



Platygyrium repens, Br. & Sch. 

 Pylaisia intricata, Br. & Sch. 

 " velutina, Br. & Sch. 



