84 CRYPTOGAMIA. HEPATICJE. ALGiE. 



In shady woods. 

 2 brevicaule. 

 Polytrichum Pennsylvanicum. Mx. 

 Moist banks and road sides. 



471. Polytrichum. 



1 juniperinum. In dry woods. July. 



2 piliferum. On rocks at Patterson falls. 



3 perigoniale. Mx. In woods and on road sides. June — July. 



HEPATICiE. 



472. JtTNGERMANNIA. 



1 Epiphylla. On the earth in moist woods. 



2 pinguis. Wet mossy banks. November. 



3 iurcata. On old trees. 



4 pusilla. On moist ground. 



5 tridenticulata. Mx. In swamps. 



6 platyphylla. On the trunks of old trees and on rocks. 



7 tamarisci. On rocks and woods. 



8 complanata. On the trunks of trees. Common. 



9 nemorosa. In swamps. 



10 dilatata. On the trunks of trees. 



1 1 tomentella. Wet shady woods. 



12 orbicularis. ? Mx. In woods, among mosses. 



473. Marchantia. 



1 polymorpha. In the cedar swamp at New-Durham. July. 



2 hemispherica. In gravelly shady situations, in gardens. 



September. 



3 conica. Mossy shady banks. Clark's woods. October. 



4 cruciata. On the sides of hills near the arsenal, Bergen. 



May. 



5 tenella. Mx. With the preceding. May. 



474. Riccia. 



1 glauca. On wet ground. 



2 natans. Floating with lemna, in stagnant waters. 



3 fluitans. With the preceding. 



ALGtE. 



475. Conferva. 



1 rivularis. In creeks, &c. Summer. 



2 velutina. (Byssus.J On moist earth. 



3 fluvialis. In slow flowing streams. 



4 glomerata. On stones, &c. in ponds. 



476. Ceramium. 



1 diaphanum. In the ocean. 



2 littoralis. On the sea shore. 



477. Fucus. 



1 vesiculosus. On rocks in salt water. 



2 nodosus. With the former. 



3 spiralis. With the former. 



4 natans On the sea shore. 



5 purpurasccns. With the former. 



