290 PITTOXIA. 



■ 



by every gradation. The pubescence and the red stems, as 

 well as the closely imbricated and not squarrose involucre, 

 render this species easily distinguishable from G. rohusia. 



Grindelia patens. O. hirsufnln, Gray, partly, not of H. 

 & A. Stems stout, strictly erect, with a few terminal mono- 

 cephalous branches, or simple: herbage not glutinous, neither 

 villous nor hirsute but scabrous-pubescent, the giowing parts 

 more or less tomentose: leaves thinnish, narrowly oblanceo- 

 late, coarsely serrate: heads ^ inch high or more, | to 1 inch 

 broad ;^ bracts of the involucre mostly foliaceous and widely 

 spreading, lanceolate or linear, occasionally narrower and 

 smaller, with recurved tips: disk-achenes thin, obcordate at 

 summit, striate, their pappus-bristles 2 only. 



Frequent along the western base of the Oakland and Ber- 

 keley Hills ; early-flowering and readily distinguishable from 

 &. rubricauUs by its erect habit, the different pubescence, and 

 by the very foliaceous-bracted and tomentulose but not gluti- 

 nous involucre. This species was mentioned by me, without 

 name, some years since, in Bot. Gaz. viii. 256. 



J 



Grindelia lanata. Stem stout, erect, 2 or 3 feet high, 



reddisli and, with the foliage and involucre, partly covered 

 with a lanate white pubescence: lower cauliue leaves nar- 

 rowly spatulate or oblanceolate, sessile but scarcely clasping, 

 entire or with few and coarse teeth ; leaves of the corymbose 

 branches entire, much broadest below the middle, where they 

 are rather abruptly dilated to cordate-clasping base: heads 

 rather small, subtended by two or three cordate-clasping 



bracts: involucral bracts linear-attenuate, tomentose, scarcely 

 glutinous. 



At Oak Bay, Vancouver Island, 18 June, ]887, John Macoun; 

 the specimens distributed as G. inteyrifolia, DC, but lacking 

 the resinous qualities of that species, and being pronouncedly 

 lanate-hoary throughout. The floral leaves with their abruptly 

 dilated cordate base, present a very striking outline. 



