No. 11.] INDEX TO CATALOGUE. 
Thuidium delicatulum (L.) Br. & Sch. 
gracile Br. & Sch. 
microphyllum Best 
minutulum (Hedw.) Br. & Sch. 
paludosum Jaeg. & Sauerb. 
pygmeum Br. & Sch. 
recognitum (Hedw.) Lindb. 
scitum Aust. ‘ 
virginianum Lindb. 
Timmia Hedw. 
cucullata Michx. 
megapolitana auct.. 
TIMMIACEE 
Tortella (C. Miill.) maps: 
cespitosa (Schwaegr.) Siapr: 
tortuosa (L.) Limpr. 
Tortula Hedw. 
montana (Nees) tind. 
muralis (L.) Hedw. 
papillosa Wils. 
Trichocolea Dumort. 
tomentella (Ehrh.) Deniort 
Trichostomum Hedw. : 
cylindricum (Bruch) C. Miil. 
U 
Ulota Mohr ‘ F 
americana (Beauv.) Limpr. 
crispa (Hedw.) Brid. 
crispula Bruch 3 
Hutchinsie (Sm.) Hammar . 
Ludwigii Brid. 
ulophylla (Ehbrh.) Broth: 
WwW 
Webera Ehrh. 
albicans Schimp. 
nutans Hedw. . 
sessilis (Schmid.) Land, 
WEBERACEZ : ‘ 
Weisia Hedw. ‘ P 
viridula (L.) Hedw. . 
140, 
90, 
90, 
115, 
115, 
91, 
89, 
