54 THE CAY CCA FLORA. 



206. Cnicus, .Tourn. [Cirsium, DC. of Man.) 



519. C. aryknsis, Hoffm. Canada Thistlk. (H. and C.) 

 Fields ; excessively common. July-Oct. 



520. C. aryknsis, Hoff. var. albiflorus, appears more and more 

 abundantly each year. 



521. *C. taxckoi.atus, Hoffm. Common Thisti.k. (H. and C.) 

 Fields ; common. Aug. -Oct. 



522. C. pumilus, Torr. Pasture Thistle. (H.atidC.) 

 Pastures ; scarce. Aug. -Sept. 



North of Fall Cr. South Hill. E. of the South Pinnacle in 

 Caroline. 



523. C. altissimus, Willd., var. discolor, Gray. {Cirsium discolor. 

 Spring.) (H.-andC.) 



Univ. Grove, formerly. Near Indian Spring Marsh. Negundo 

 Woods. North of Levanna and Lockwood's Flats. On banks ; 

 scarce. 



524. C. muticus, Pursh. Swamp Thistle. (H. and C.) 

 Swamps ; frequent. Aug. -Oct. 



[Onopordon AcanThium, L. Near Penn Yan, by S. H. Wright.] 



[Silybum Marianum, Gsertn. Also near Penn Yan, by Wright.] 



207. Echinops, Linn. 



525. E. Ritro, L. Globe Thistle. 



Caroline Center, escaped from cult, and spreading rather freely, 

 along a brook. {F. T. Wilson, 1885.) 



208. CenTaurea, Linn. 



526. C. Cyanus, L. Corn-flower, (C.) 

 Campus. E. State street, Ithaca, and elsewhere, appearing almost 



every year. In 1885, in a wheat field east of Case. Woods, many 

 specimens. (F. T. Wilson. )! 



C. nigra, L. On the Campus near the McGraw building, 2875. 

 (C. by Dr. Wright.) 



209. Cichorium, Tourn. 



527. C. Intybus, L. Chiccory. (H. and C.) 

 Fields ; not common. Aug.-Sept. 



Has appeared on the Campus at intervals, but is established only 

 in fields north of Dryden Lake ; near Romulus Sta. ; by road west 

 of Enfield Falls, and on Crobar Point. 



210. Tragopogon, Linn. 



528. T. porrifolius, L. Salsify. 

 Fields ; becoming frequent. July-Oct. 



Campus, south of Sage Coll. Hazen St. Quarry St. South 

 Hill. Enfield, and elsewhere. 



529. T. pratensis, L. Yellow Goat's-beard. 



South Hill. Near Levanna (1879.) Venice and Genoa, occasion- 

 al. A weed in farms west of Locke Pond., {Dr. C. Atwood.) ! 



