A FURTHER STUDY OF AGOSERIS. 127 



Agoseris microdonta. Coarse and tall perennial of low 

 meadows, the stout scapes 1 to 2 feet high and more support- 

 ing large many-flowered heads, the leaves not rarely a foot 

 long and more ; herbage pallid and glaucescent, glabrous in 

 the main, the scapes and leaf-margins at least, sometimes the 

 leaf surface, more or less crisped-hairy: leaves lanceolate, 

 narrowed gradually to a distinct winged petiole, its margins 

 lanate-ciliate even in leaves otherwise glabrous, most leaves 

 saliently if even remotely denticulate, in some plants with few 

 and larger teeth : involucres 1% inches high, 1 inch broad at 

 summit, the summit of the scape under them either tomentose 

 or scarcely so ; bracts many and imbricated, none very- 

 broad, the outermost triangular-lanceolate, the rest more and 

 more narrowly lanceolate, all villous-ciliate, sometimes also 

 appressed-villous on the back, all the pubescence brownish : 

 achenes 7 lines long including the hollow beak, this more 

 than half as long as the body, the outer series dark-colored 

 and very strongly serrulate-scabrous at summit, those next in 

 order pale, less scabrous, the central all abortive ; pappus not 

 as long as the achene, very fine and fragile. 



Coarse large species of southeastern Washington, said to be 

 common about Pullman, in low meadows, where it has been 

 collected and distributed by Mr. Piper and by Miss Hard wick. 

 There are three good sheets of it in U. S. Herb., of the years 

 1901 to 1905. 



Agoseris procera. Very large and stout, the scapes 2 

 feet high, the foliage ample, upright, a foot high or more ; 

 herbage wholly glabrous, of a dull pallid green, merely glau- 

 cescent, blackening in the drying : leaves narrowly lanceolate 

 above the long and rather wide petiolar basal part, sparingly 

 and variously toothed, attenuately acute at apex : involucres 

 many -flowered, an inch high only, but quite as broad, the 

 numerous bracts all narrow, much imbricated, triangular- 

 lanceolate, slenderly acuminate, some obscurely villous-ciliate 

 toward the apex, otherwise glabrous ; ray-flowers apparently 

 more or less villous-arachnoid externally: achenes not known, 



