1894] PLANTS OF MONROE COUNTY. 79 



544. C. altissimus Willd. var. discolor Gray. [Cirsiitm discolor Spreng.) 



{Cardiuts discolor (Muhl.) Niitt.J 

 Borders of woods; scarce. 



545. C. muticus Ph. {Cirsiitm muticum Mx.) S^Carduus muticus (y\.x.)V&r'=,.\ 



Swamp Thistle. 



Swamps; not common. Scottsville. Caledonia, Livington county. 

 Bergen, Genesee county. 



546. C. pumilus Torr. [Cirsiitm pumilum Spreng.) \Carduus odoratus 



(Muhl.) Porter.] Pasture Thistle. 

 Old fields ; infrequent. 



. 547. C. ARVENSis Hoff. [Cirsiu7?i arvense Scop.) [^Carduus arvensis (L.) 

 Robs.] Canada Thistle. 

 Fields, roadsides, waste places ; very common. 



548. C. arvensis Hoff. var. albiflorus. Frequent. 



214. ONOPOKDON Vaill. [L.] 



54Q. O. acanthium L. Scotch Thistle. 



Roadsides and fields ; scarce. North Union street and Lake avenue, 

 Rochester. Irondequoit. Chili. Bergen. Wayne county. 



SILYBUM Grertn. 



— S. Marianum Gaertn. \S. Marianmn (L.) Ga^rtn.] Milk Thistle. 

 Neglected grounds. East avenue, Rochester, i8gi-i8g4. 



2J5. CENTAUREA L. 



550. C. benedicta L. [Cnicus beiiedictus L.) \Cnicus benedictus L,] 



Kendall, Orleans county, Prof. IV. H. Lennon. 



551. C. Jacea L, Neglected lawn, East avenue, Rochester, 1882-1894. 



216. LAMPSANA Tourn. [Lafsana L.] 



552. L. COMMUNIS L. 



Roadsides and grass plats ; rare. Near Rochester, 0//(? i?t'/ir. Brock- 

 port, Prof. Lennon. Wayne county. 



217. CHICORIUM Tourn. [L.] 



553. C. Intybus L. Chicory. Succory. 



Fields and roadsides ; common. Abundant in many places. In the 

 southern part of Ontario county it is known as Evaft's Pink. 



218. TRAGOPOGON L. 



554. T. poRRiFOLius L. Salsify. 



Fields ; frequent in the vicinity of Rochester. 



555. T. PRATENSis. L. Yellow Goat's-beard. 



Rare. Waste lot. State street, Rochester, /. B. Fuller. Along rail- 

 road, G. T. Fish. Brock port. Prof. Lennon. L. Holzer. 



