80 University of California Publications in Botany. IT OL - 3 



simple racemes or these branching to form an elongated panicle ; 

 uppermost heads in congested clusters: peduncles v commonly 2 

 cm. long) with linear overlapping bracts: involucre 7 mm. high; 

 its bracts canescent, closely imbricated, the green tips obtuse : rays 

 30 to 35, about 7 (6 to 10) mm. long, deep blue (commonly 

 brown in dried specimens) : style-appendages linear to lanceolate 

 in ray-flowers, broadly lanceolate in disk-flowers: achenes canes- 

 cent : pappus fine and soft, sordid. (Plate 2.) 



In meadows, vicinity of San Bernardino, California, at an 

 altitude of 300 m., Sept. 5, 1905, 8. B. Parish, no. 5543; same 

 locality and collector, Sept., 1891 ; also Sept. 15, 1896, no. 4198 ; 

 Orange Co., C. W. Hamlin, no. 25; Cienega, near Los Angeles, 

 Braunton, no. 637; near Pomona, Davy, no. 2870. The type is 

 Univ. Calif, sheet no. 72044 (Parish, no. 5543). 



This species is intermediate between A. defoliatus and A. 

 Chilensis. It differs from the former in its lower stature, more 

 compact and leafy inflorescence, and larger heads; from the 

 latter in its more numerous and narrower leaves and bracts ; and 

 from both of these species in its dense cinereous pubescence. From 

 A. Menziesii, with which it has been confused, it may be dis- 

 tinguished by its lax foliage, soft pubescence, etc. Some of the 

 specimens collected by Parish under no. 5543 have a remarkably 

 secund inflorescence, the heads all on short horizontal leafy- 

 bracteate branchlets (these 2 or 3 cm. long). This is probably 

 due to ecologic causes, the plants being otherwise typical. 



7. A. Chilensis Nees, ^st. 133 (1832). A. Chamissonis Gray, 

 Wilkes Exped. xvii. 341 (1874). 



Five to 10 dm. high, with loosely spreading branches above : 

 herbage villous-pubescent or glabrate: leaves lanceolate, sessile 

 by a half-clasping base, 10 cm. or less long, commonly 1 or 2 cm. 

 wide, the upper entire and passing gradually into the bract- 

 like ones of the inflorescence, the oblong-spatulate radical ones 

 remotely serrate and attenuate into a petiole, all commonly with 

 scabrous-ciliolate margins: involucre 6 to 8 mm. high: rays 

 white, lavender, or bluish, 8 to 12 mm. long. 



Low or marshy ground of western California, including the 

 islands; rare within our limits, and perhaps not occurring south 



