493 



Florida: Chapman; Duval County, N. E, Florida, Curtiss, 

 no. 1 190; near Jacksonville, Curtiss, nos. 4437 and 5162. 



A showy species hitherto confused with Eupatoriiim album and 

 not yet found without the State of Florida. The general habit 

 of the species is that of its nearest relative, E. album, but in place 

 of an acute leaf-blade there is an obtuse apex. However, the 

 crucial character lies in the inner involucral bracts ; these, instead 

 of being long-acuminate, are linear-spatulate and conspicuously 

 mucronate, the dilated portions of a white or creamy-white color. 



Chrysopsis Ruthii. 



Perennial, slender, silvery-pubescent, stoloniferous. Stems dif- 

 fusely branched, 1-3 dm. long, the branches ascending or decum- 

 bent, very leafy, densely so above ; leaves linear or some linear- 

 lanceolate, 2-5 cm. long, acuminate, entire, sessile, the old ones 

 becoming longitudinally ribbed ; heads solitary, or corymbosely 

 disposed, about l cm. high; peduncles 1.5-2 cm. long, densely 

 glandular ; involucral bracts linear or linear-lanceolate, in 4-5 

 series, glandular on the back, the pale edges ciliate, the apex 

 bearded; rays bright yellow, elliptic-spatulate, 7-8 mm. long, 

 .slightly notched at the apex ; corolla 5 mm. long, yellow, the seg- 

 ments triangular, sparingly ciliate, nearly erect; pappus dirty 

 white, slightly shorter than the corolla; filaments and anthers 

 glabrous ; style glabrous, except the very sparingly glandular top ; 

 achenes pubescent. 



Rocks in the Hiawassee Valley, eastern Tennessee. 



A low stoloniferous species related to Chrysopsis graminifolia 

 from which it differs conspicuously in being low, diffusely branched 

 and bushy. Besides the very slender habit, the small acumi- 

 nate leaves, the glandular peduncles and narrower and more 

 acuminate involucral bracts distinguish Chrysopsis Ruthii from C. 

 graminifolia. The species is named for Prof. A. Ruth, of Knox- 

 ville, Tenn. 



SiLPHIUM MOHRII. 



Perennial, coarse, very hispid throughout with shaggy hairs. 

 Stem erect, 6-12 dm. tall, simple below, branched above, finely 

 channelled in age; leaves alternate, ovate-lanceolate to narrowly 

 ovate, 5-14 cm. long, acuminate, remotely serrate with promi- 

 nent teeth, except near the base and apex, sessile or nearly 

 so; heads 3.5-4.5 cm. broad, peduncled ; involucres broadly cani- 

 panulate, the bracts lanceolate or ovate-lanceolate, 8-14 mm. long, 

 acute or somewhat acuminate; corolla about 4 mm. long, the 



