CATALOGUE OF PLANTS. 225 



Dr. Warnstorf, however, writes that the discovery is a very 

 important one, since it is the second or third time that this 

 species has been collected. He evidently regards it as a good 

 species. 



MARSUPELLA, Dumort. 

 M. sphacelata (Giesecke), Dumort. 



On rocks. Summit of Green Mt. (D. C. Eaton) ; Beech 

 Cliff (Rand). 



M. emarginata (Ehrh.), Dumort. 



Wet rocks; frequent. 

 M. adusta (Nees), Spruce. 



Wet ledges, Green Mt. (E. Faxon). 



NARDIA, S. F. Gray. 



N. crenulata (Sm.), Lindb. 



On decaying wood. The Heath, Great Cranberry Isle (Rand). 



FOSSOMBRONIA, Raddi. 

 F. Dumortieri, Lindb. 



Pond shores, on ground. Jordan Pond ; Ripples Pond ; Great 

 Pond (Rand). 



PALLAVICINIA, S. F. Gray. 



P. Lyellii (Hook.), S. F. Gray, Steetzia Lyellii y Lehm. 

 Forming mats under water, Sunken Heath Brook (Rand). 



PELLIA, Raddi. 

 P. epiphylla (L.), Nees. 



On damp ground, pond shores, brooksides, etc.-, common. 



ANEURA, Dumort. 

 A. palmata (Hedw.), Dumort. 



Dioecious, generally proliferous, small, opaque; thallus short 

 and narrow; branches linear, palmately divided, usually narrow- 



15 



