(i8 4 ) 



Family Cichoriaceae. 



Taraxacum ceratophorum DC. Five-finger Rapids 

 (Tarleton). 



Crepis elcgans Hook. River bank opposite Dawson 

 (Williams). Specimens with lyrate-pinnatifid lower leaves. 



Hieracium gracile Hook. Bennett City (Williams). 



Hieracium triste Cham. White Pass (Williams). 



Hieracium albiflorum Hook. Bennett City (Williams). 



Family Compositae. 



Sol/dago multiradiata Ait. Dawson (Williams) ; Fort 

 Selkirk (Tarleton). 



Solidago elongata Nutt. Fifty miles above Stewart 

 River (Tarleton). 



Solidago oreophila Rydb. Dawson (Williams) ; Fort Sel- 

 kirk and fifty miles above Stewart River (Tarleton). 



Stenotus borealis Rydb., sp. nov. 



Depressed cespitose, branches 3-6 cm. long, densely cov- 

 ered with the leaves, which are narrowly linear, almost fili- 

 form, 10-18 mm. long and .5~.7 mm. wide, hispid ciliate on 

 the margin and with a strong rib : peduncles naked, 4-5 cm. 

 long, puberulent and glandular especially above : head about 

 1 cm. high : bracts subequal in two series, linear lanceolate, 

 acute, thin, puberulent and somewhat glandular, yellowish 

 green: rays about 1 cm. long and 3-4 mm. wide, obtuse or 

 truncate and entire at the apex: pappus tawny white. 



This species is nearest related to S. stenophyllus (A. Gray) 

 Greene, but the latter has thicker bracts and its leaves are 

 glandular puberulent all over, while in S. borealis the leaves 

 are devoid of glands, perfectly glabrous except the ciliolate 

 margin. Foot of Lake Lebarge (J. B. Tarleton, 51). 



Aster giganteus (Hook.) Rydb. {Aster Richardsonii gi- 

 ganteus Hook. Fl. Bor. Am. 2: 7. 1840.) Near mouth of 

 Klondike and at Dawson (Williams); Five-finger Rapids 

 (Tarleton). 



Aster Unalaschensis Less. The same as the specimen in 

 the Columbia Herbarium from Unalaska, named by Bongard. 



