CHICORIACEOUS COMPOSITE. 55' 



tenuate, only half occupied by the seed : palete 10 — 12, very 

 narrow and nearly equal, strictly linear-attenuate, a half 

 inch long : involucre villous-tomentose or glabrate : scapose 

 peduncles exceeding the radical leaves. 



Western part of Klickitat County, Washington Territory, 

 April and May, 1882, W. N. Suksdorf. 



N. TROXIMOIDES. — Akene fusiform, scarcely 4 lines long, 

 merely contracted summit, nearly filled by the seed: paleae 

 20 — 25, lanceolate below, very unequal, a half inch long: 

 involucre and peduncles as in the last. — Microseris troxhuoides, 

 Gray, Proc. Am. Acad. ix. 211; Bot. Gal. 1. c: Syn.Fl. 1. c. 



Northern California to Oregon and Idaho. 



N. CUSPID ATA. — Akene little contracted, 3 lines long, 

 filled by the seed : pappus of 40 — 50 unequal, very narrow, 

 setose paleae and scabrous bristles: leaves all radical, longer 

 than the flowering scapes: involucre glabrous. — Troximon 

 Pursh, Fl. ii. 742; Torr. k Gray, Fl. ii. 489; Gray, Syn. Fl. 

 ii. 437: T. marginatum, Nutt. Gen. ii. 127. 



On bleak, stony hills and fertile prairies, from Dakota 

 and Colorado to Wisconsin and Illinois. Scarcely distin- 

 guishable from its far Western congeners except by the 

 pappus. The undulate-crisped, white-hairy margins of the 

 grassy leaves of this giving it an aspect so strikingly unlike 

 the general appearance of the other species of his genus 

 Troximon, were points not overlooked by that well traveled 

 and most keenly observant botanist, Mr. Nuttall. That he 

 noticed the peculiarity and was impressed by it is evinced 

 by his effort to invest the species with a new specific name, 

 marginatum, more appropriate than Pursh' s cuspidatmn, 

 which was given to it in reference to the acuminate rather 

 than cuspidate bracts, and has, therefore, no fitness, but 

 which must needs be retained in deference to its priority. 

 The name marginatum would, indeed, be equally and in the 

 same way, applicable to each of the three known species of 

 Nothocalais, 



