1.18 NEW SPECIES 01 PLANTS. 



usual unequal pappus. This species appears scarcely 

 distinguishable from C. ausiriaca. Like most of the 

 genus, it is a hardy annual, or biennial. 



5. Donia *ciliata, foliis oblongis obtusis subam 

 plexicaulibus ciliato-serratis: laciniis calicinis lineari- 

 bus planis seto acuminatis; caule herbaceo. 



Habitat. On the alluvial banks of the Arkansa, 

 and Great Salt River. — Flowering time, from August 

 to October. 



Descriptive observation. Biennial. The whole 

 plant smooth and shining, with the calix less resin- 

 ous than in D. squamosa, the segments not fili- 

 formly reflected, and the receptacle partly paleaceous. 

 The serratures of the leaves are somewhat distant, 

 and obtuse, but setaceously pointed as in Carthamus 

 thidorius. Each branch and branchlet, as in the 

 other species, is terminated by a subsessile flower. 



There are few more desirable ornaments for the 

 autumnal flower garden than this and No. 3. The 

 flowers are large and of a bright golden yellow. The 

 plant also attains the height of 4 or 5 feet, and is per- 

 fectly hardy. 



Locality. — Cultivated in the garden of the Uni- 

 versity of Pennsylvania. 



6. (Enothera ^triloba, acaulis; foliis interrupte 

 pinnatifulis dentatis glabris; petalis apice trilobis; 

 capsulis quadrialatis magnis. 



Habitat. In the arid and partly denudated prairies 

 of Red river. 



