FLOWEBLESS PLANTS. 71 



Rarbula tortuosa, W. & M. — Mts. (Sull.) Wet rocks. 



ruralis, Iledw. — Up. (Sull.) On rocks. 

 Desmatodox plinthobius, Sull. & Lesq. — Low. Brick walls. 

 Tetrapiiis pellucida, Iledw. — Mid. & Up. Earth in woods. 

 Zygodon Sullivantii, Mull.— Mts. (Sull.) On rocks. 

 Diummoxdia clavellata, Hook. — Common. Trunks of trees. 

 Ortiiotriciium cupulatum, Iloff. — Up. (Sull.) On Rocks. 

 exiguum, Sull. — Low. (Sull.) On Trees, 

 strangulatum, Beau v. — Common. Trees. 

 ITutchinsiae, Smith. — Mts. Hocks. 

 crispum, Iledw. — Mts. Trees. 

 Pi Y( iiomitrium incur vum, Schwsegr. — Mts. (Sull.) Rocks. 



Drummondii, II. cfe W. — Low. Trees and roofs. 

 Greumia apocarpa, Iledw. — Up. On rocks. 



Pennsylvanica, Schwsegr. — Mid. and Up. Rocks. 

 Hedwigta ciliata, Elirh. — Mid. and Up. Rocks. 

 Buxeaitmia aphylla, Haller. — Up. (Sull.) Earth. 

 Diphyscium foliosum, W. & M. — Mts. Earth. 

 Atrichum undulatum, Beau v. — Up. (Sull.) Clay banks. 



angustatum, Beauv. — Common. Shady woods. 

 Pogoxatum brevieaule, Brid. — Mid. and Up. Clay hanks, 

 brachyphyllum, Michx. — Low. Sandy hanks. 

 Pogonatum urnigerum, Brid. — Mts. (Sull.) Earth, 

 capillare, Brid.— Mts. (Sull.) Earth, 

 alpinum, Brid. — Mts. (Sull.) Earth. 

 Polytriciium commune, L. — Low. and Mid. Damp sandy soil, 

 formosum, Iledw. — Mts. Earth around trees, 

 piliferum, Schreb. — Mts. (Sull.) Rocky soil. 

 Aulacomxiox palustre, Schwsegr. — Low. Swampy ground. 



heterostichum, Br. & Sell. — Mid. and L T p. Shaded 



1 tanks. 

 androgynum, Schwa j gr. — Mts. (Sull.) Rocky ground. 

 Bryum pyriforme, Iledw. — Mid. and Up. Moist ground 

 crudum, Schreb.— Mts. (Sull.) Earth, 

 annotinum, Iledw. — Mts. (Sull.) Earth, 

 elongatum, Dicks. — Mts. (Sull.) Crevices of rucks, 

 roseum, Schreb. — Mid. and Up. Shady woods, 

 argenteum, L.— Mid. and Lip. On roofs, open ground, &c 

 pseudo-tricpietrum, Schwsegr. — Up. (Sull.) Wet rock-. 



