300 BOTANicAL GAZETTE. [ November, 



inch or less long, monocephalous : heads homogamous, 

 about 2o-flowered, subglobose, 5 lines high ; exterior bracts 

 of involucre foliaceous, scabrid, ovate, minute ; interior ones 

 smooth, oblong. obtuse, exceeded by disk ; bracts of conic 

 receptacle conduplicate, laciniate, rostrate : palets of pappus 

 20-23, linear-tapering, nearly naked, subequalling corolla ; 

 achenia pubescent.— Nearest, especially in foliage, to the 

 Columbian C. orlomerata Klatt., Bot. Jahrb. viii, 45. Rocky 

 mountain sides near Coban, alt. 4,300 feet, Aug., 1887. (Ex 

 Pl- ^Jt- 1353-) 



PiTCAiRxiA TuERCKHEiMii. Bot. Gazette, XIII, 190. Explanation of 



l^latexxiv: Fig. 1. Piant, nat. size. Fig. 2. Vertical section of flowers 

 nat. size. 



Baltimore^ Ald. 



