91 PRELIMINARY CATALOGUE OF PLANTS. 



S. lucida, Muhl. Shining Willow. Andover, Sussex Co., A. P. Gar- 

 ber, C. F. Austin; Budd's Lake, Morris Co., T. C. Porter; Verona, 

 Essex Co., H. H. Rusby. 



S. nigra, Marsh. Black Willow. Frequent in the southern and 

 middle counties. 



S. fragilis, L. Brittle Willow. Little Falls, Passaic Co., H. H. 

 Rusby ; Delaware Water Gap, A. P. Garber ; Camden, C. F. Parker. 

 Adv. Eu. 



S. alba, L. White Willow. Common along streams in all parts of 

 the State. Adv. Eu. 



S. longifolia, Muhl. Long-leaved Willow. Delaware Water Gap, 

 A. P. Garber ; Marble Hill, Warren Co., T. C. Porter ; banks of the 

 Delaware at Camden, C. F. Parker. 



S. myrtilloides, L. Myrtle Willow. Budd's Lake, Morris Co., T. C. 

 Porter, C. F. Austin. Eu. 



Populus, Tourn Poplar. Aspen. 



P. tremuloides, Michx. American Aspen. Woods. Rather com- 

 mon throughout. 



P. grandidentata, Michx. Large-toothed Aspen. Frequent in the 

 northern and middle counties. 



P. heterophylla, Ait. Downy Poplar. Rare. " Found in N. J. 

 June 6th, 1814," in Herb. Acad. Nat. Sci. Phil. 



P. angulata, Ait. Angled Cottonwood. Above Phillipsburg, War- 

 ren Co., T. C. Porter; Holland Station, Hunterdon Co., C. F. Parker. 



EMPETRACE^E. 



Corema, Don Broom Crowberry. 



C. Conradii, Torr. In pine barren regions, but very scarce. Cedar 

 Creek, Ocean Co., Dr. John Torrey, but was not found there by Messrs. 

 J. H. Redfield and C. F. Parker, who went in search of it ; a reported 

 locality at Pemberton, Burlington Co., proved equally disappointing ; 

 borders of pine woods, Ocean and Monmouth Cos., O. R. Willis in 

 Catalogue ; New Jersey, Gray's Manual. 



CERATOPHYLLACE^l. 



Ceratophyllum, L Hornwort. 



C. demersum, L. Hornwort. Frequent in slow streams. Bergen 

 Co., C. F. Austin ; tidal mud, Delaware River at Camden, C. F. Parker. 

 Eu. 



