27 



^ lDriog'i>nulik capitatuiii 



Perennial: stem tall, stout, 8-10 dm. high, simple below, 

 becoming dichotomous or trichotomous about 3 dm. from the 

 base, the branches erect and naked, again once or twice branch- 

 ed, clothed with a persistent cottony pubescence: leaves all 

 glabrous or nearly so above, whitened below with a dense short 

 felt-like tomentum, mostly basal; these with oblong blade about 

 5 cm. long, 2.5 cm. wide, of nearly equal width throughout, the 

 broad apex rounded and obtuse, usually somewhat oblique at 

 the base, which is either a little narrowed into the petiole or 

 somewhat cordate, petioles 8 cm. long or less, nearly 2 mm. 

 wide, channeled and usually glabrous above, white below like 

 the blade, dilated at base; leaves several at the first node, with 

 blades ovate, obtuse, about 2 cm. long and nearly as broad, 

 slightly cordate at base, the petioles 1-2 cm. long; those of the 

 several nodes above of similar shape, but reduced and bract-like: 

 flowers terminal on stout peduncles about i dm. long, numerous 

 in dense capitate clusters: involucres tubular, a little narrowed 

 below, densely woolly within and without, about 5 mm. long, 

 2 mm. wide, 5-nerved, teeth nearly obsolete, represented by 

 slight points: calices creamy with yellowish or greenish veins, 

 funnel-form, about 3 mm. long and as broad above, the lobes 

 about equal, obovate-spatulate, villous both inside and out on 

 the lower half: stipes slender, exserted about 2 mm. beyond the 

 involucre, disarticulating at the calyx: akenes narrow-triangular, 

 grayish-brown, shining, 3-winged, the wings not sharp. 



The type is no. 8099, collected July 15, 1905, near Nevada 

 City, Nevada county, along the Grass Valley road, growing in 

 gravel. 



This species belongs to the E. niiditm group, but differs 

 from that and all related species .in its uniformly floccose pubes- 

 cence, the numerous flowers in dense capitate clusters, very hairy 

 involucres and pubescent flowers. Its nearest relative is prob- 

 ably E. affinc Benth., but that has "involucris in capitulo 1-3. . 

 . . glabris vel margine lanatis, perigoniis glabris." 



