CATALOGUE OF PLANTS. 151 



CARDUUS, L. 



Musk Thistle. 

 C. NUTANS, L. 



Hudson : On hills back of Hoboken Schrenk ; in ballast at 

 Communipaw A. Brown. Camden : In ballast Martindale. 

 Adventive from Europe. 



CNICUS, L. (Girsium, DC.) 

 Thistle. 



C. ARVENSIS (L.), Hoffm. Canada Thistle. 



Fields and roadsides. Frequent, notwithstanding its legal 

 exclusion. Adventive from Europe. 



C. LANCEOLATUS (L.), Willd. 



Fields and roadsides; common. Naturalized from Europe. 



C. altissimus (L.), Willd., var. discolor (Muhl.), Gray. (Oirsium dis- 

 color, Spreng.) 



Meadows and low grounds. Common throughout the State.* 



Forma albiflora, Britt. 



Bergen : Carlstadt Schuh. 



C. muticus (Michx.), Pursh. Swamp Thistle. 



Gloucester : Two miles west of Mullica Hill B. Heritage. 

 Mercer: Princeton Willis; Trenton Apgar. Union: PJaiu- 

 field Tweedy ; and frequent in the northern counties. 



C. odoratus (Muhl.), B. "S. P. (Oirsium pumilum, Spreng.) Pasture 

 Thistle. 



In pastures. Frequent throughout the State. 



C. spinosissimus (Walt.), Darl. (Oirsium horridulum, Michx.) Yellow 

 Thistle. 



Burlington : Pemberton Miss Willmarth. Hunterdon : A 

 single plant near Rosemont Best; and frequent along the 

 junction of salt or brackish marsh with the upland, eastern and 

 southern counties. 



* This is the Oirsium altissimum of the Knieskern and Willis Catalogues. I have 

 not been able to establish the occurrence of the real C. altissimus in the State, and the 

 same statement applies to the Girsium Virginianum recorded by Dr. Willis from Mon- 

 mouth Co. 



