Flowerless Plants. 



Arrhenopterum. Hedw. 



heterostichum, Hedw. Byrum arrhenopterum-, Dill. 

 Bartramia. Hedw. 



crispa'? Sw. B — e. 



fontana, Hooker. 



gracilis, Sm. Oederi, Schwaegrichen. 

 pomiformis, Hedw. 

 Bryum L. 



androgynum, Hedw. 

 aureum, 



argenteum, L. B — e. 



caespiticium, L. B — e. 



cuspidatum, Schreb. B — e. 



nutans, Schreb. Webera nutans, Hedw. B — e. 



punctatum, Schreb. 



roseum, Schreb. B — e. 



triquetrum, Turner. Meesia longisela Hedw, 



turbinatum, Sw. 

 Buxbaumia L. 



|j aphylla, L. 

 Catharinea Ehrharst. 



undulata, Web. & Mohr. Polytrichum undulatum, Hedw. 

 Climacium Web. & Mohr. 



Americanum, Brid. Hypnum dendroides, L. B — e. 

 Dicranum Hedw. 



cerviculatum, Hedw. 



glaucum, Hedw. B — e. 



heteromallum, Hedw. B — e. 



orthocapon, Hedw. B — e. 



polycarpum, Ehrh. 



scoparium, Hookr. & Tay. B — e. 



strictum, Brid. 



undulatum, Ehrh. 

 Diphyscium. Web. & Mohr. 



foliosum,Web. & jMohr. Hymenopogon heterophyllum, P.deB. 

 Didymodon Hedw. 



purpureum, Hooker &; Tay. Dicranum purpureum, Hedw. 

 Diplocomium. Web. & Mohr. 



longisetum, Web. & Mohr. B — e. Meesia longisela. 

 Encalypta Schreb. 



ciliata, Hedw. Deerneld. 

 Fissidens Hedw. 



adianthoides, Hedw. 



taxifolius 1 Hedw, 

 Fontinalis L. 



antipyretica, L* B — e. 



squamosa, J. Porter, Mass. 

 Funaria Hedw. 



flavicans, Muhl. B — e. 



hygrometrica, Hedw. B — e. 

 Grimmia Hedw. 



leucophoea, Hook. & Tay. 



ovata ? 



pilifera, Mx. 



pulvinata, Smith. 



