34 CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [Bull. 
.well defined, and of these groups the species given below may 
be considered typical members :— 
NEROPIYTLS. 
1. Plants growing on exposed rocks with little or no earth 
covering — trap ledges, stone walls, bowlders, etc. 
Frullania Asagrayana Grimmia Olneyi 
Andreea Rothu Ulota Hutchinsic 
Hedwigia albicans 
2 Plants growing on living trees in the open or in the 
woods. 
Frullania eboracensis Drummondia clavellata 
Orthotrichum ohioense Leucodon julaceus 
Thelia hirtclla 
3. Plants growing on earth, or on rocks with a thin earth 
covering in fields and along roadsides or in dry woods. 
Nardia crenulata Pogonaium tenue 
Diplophylleia apiculata Thelia Lescurit 
Physconutrium turbinatum Rhynchostegiiun serrulatum 
Mesopuytes — for the most part shade-loving plants, but 
frequently found in the open on the borders of brooks, 
in meadows, ete. 
1. Plants growing on the surface or in the crevices of 
cliffs and steep rocks. 
Reboulia hemispherica Rhabdoweisia denticulata 
Leucolejeunea clypeata Didymodon rubellus 
Aymenostylium curvirostre 
2. Plants growing on soil or humus, on flat earth-covered 
rocks, on the roots and at the base of trees, or on decaying 
logs and stumps in wet woods. 
Lophocolea heterophylla Polytrichum ohioense 
Prilidiwn pulcherrimum Ptilium Crista-Castrensis 
Timmia cucullata Climacium americanum 
