SOME BRIGERON SEGREGATES. 213 



J^ inch long, greenish, thinly somewhat strigulose-hairy, the 

 few pedunculiform and monocephalous branches minutely and 

 more densely hispidulous under a lens: involucre about 4 

 lines broad, not as high, its bracts biserial but equal, the inner 

 linear-lanceolate, aristate-acuminate, the outer linear, loosely 

 hispid-hirsute : spread of the numerous violet or paler rays 

 about ^/i inch : bristles of the pappus very delicate and fra- 

 gile, the squamellae present, as in the whole group. 



Common on stony slopes, in forests of yellow pine, in the 

 Coconino Forest Reservation, northern Arizona, the speci- 

 mens collected 24 Aug., 1911, by Jardine & Hill, who give 

 6800 feet as the altitude of the woodlands where it grows. 

 On U. S. Herb., sheet 326788 are four good specimens of the 

 same, distributed from the same general region, collected by 

 M. E. Jones, 17 Sept., 1894. The special locality given for 

 these is Nagle's Ranch. 



Erigeron furcatus. Annual or biennial, rigidly erect, 

 6 to 10 inches high, simple to the middle, there producing a 

 solitary short-peduncled head, and beyond that widely and 

 several times forked, the whole cinereous with a short strigose- 

 hirsute indument : absolutely basal foliage unknown, the 

 lowest cauline 1}^ inches long and suberect, consisting of ob- 

 lanceolate blade and narrow petiole of equal length ; those of 

 upper part of stem 1 inch long, linear, obtuse, numerous, the 

 pedunculiform flowering branches similarly bracted to within 

 a half-inch of the head ; bracts of involucre only sparsely hir- 

 sute, the inner series shorter than the outer, all acute ; rays 

 many, narrow, long, white : outer pappus conspicuous, of 

 rather many broadly subulate squamellae. 



The type is from the region of the San Francisco Mountains 

 in northern Arizona, as collected by F. H. Knowlton, 20 Aug., 

 1889, the special locality Hendrick's Park. No other mem- 

 ber of the group has a stem simple up to the height of three 

 or four inches, then once or twice or thrice forked. 



