252 COMPOSITiE. Heterothkca. 



state of the plant, or when the corymb has been injured, in which case it 

 often produces short axillary flower-branches. 



2. H. grandijlora (Nutt.) : very villous, glandular and viscid above; 

 leaves oval-oblong, obtuse, sparingly toothed ; the upper sessile or nearly so 

 with a tapering base ; the lower tapering into long and slender petioles, which 

 are somewhat dilated at the base; involucre glandular-viscid; achenia of the 

 ray pubescent, of the disk silky-pubescent; exterior pappus setose, short, in- 

 conspicuous. — Nuit. ! in trans. Amer. pliil. soc. I. c. i). 315. Diplopappus 

 scaber, Hool\ ! fl. Bor.-Am. 2. jj. 22. 



"N. W. Coast, Meazies .' in herh. Hook, (probably California?) and on 

 rocks St. Barbara, California, Nuttall! — Heads larger than in H. scabra, 

 but smaller than in H. inuloides; distinguished from the former by the 

 character assigned, and by the short and triangular obtuse appendages of the 

 styles ; from the latter by the obtuse, densely villous, slightly toothed leaves, 

 distinct exterior pappus, &c. In our specimen of H. inuloides (Mexico, 

 Harlweg), the disk-llovvers present an unequal pappus of copious capillary 

 bristles, forming 2 or more series, but with no distinct squamellate or setose 

 exterior pappus ; thus holding the same relation to Aplopappus, that the 

 other species do to Chrysopsis. 



Subdiv. 5. Chrysopside^, DC. — Pappus of the ray and disk similar, 

 double; the exterior shoi"t ; the inner copious, capillaiy. 



55. CHRYSOPSIS. Nuit. gen. 2. p. 150 ( § of Inula), excl. spec. ; Ell. 

 sk. 2. p. 333 ; DC. prodr. 5. p. 326. 



Heads many-flowered; the rav-flowers ligulate, pistillate, in a single 

 series; those of the disk tubular, perfect. Scales of the involucre linear, im- 

 'bricate. Receptacle somewhat alveolate, flat. Corolla of the disk -flowers 

 tubular, 5-toothed. Branches of the style mostly terminated by linear or 

 linear-subulate hispid appendages, often longer than the flat stigmatic por- 

 tion. Achenia obovate or linear-oblong, compressed, hairy. Pappus of the 

 disk and ray similar, double ; the exterior short, squamellate-setose or some- 

 what chaffy ; the interior of numerous elongated and scabrous capillary bris- 

 tles. Perennial, rarely annual or suffrutescent plants (all North American), 

 mostly villous, silky, or woolly ; with oblong or linear usually entire and 

 sessile leaves. Heads terminating the branches, often corymbose, showy. 

 Flowers yellow. 



§ 1. Perennial: leaves gramineous or linear, nerved: aclienia ohlong-linear, 

 at length attenuate at each end, or fusiform : exterior pappus setiform or 

 somewhat squamellate-subtdate. — Pityopsis, Nutt. 



1. C. graminifolia (Nutt.) : thickly clothed with long closely appressed 

 silky hairs ; stem corymbosely branched above, leafy ; leaves lanceolate or 

 linear, gramineous, shining, nervose, entire ; the uppermost and those of the 

 branchlets very short, appressed ; heads corymbose, or somewhat paniculate ; 

 scales of the turbinate involucre linear and lanceolate-subulate, pubescent 

 and more or less glandular; achenia linear or linear-oblong, silky-pubescent; 

 exterior pappus nearly setiform. — Ell. sk. 2. jj. 334; JDC. .' prodr. 5. p. 

 326. Inula graminifolia, Michx. ! ji. 2. p. 122 ; Pursh, fl. 2. p. 532 ; Nutt. 



