57 



CHRYSOPSIS FASTIGIATA Greene. 



"Plants 3-8 dm high, erect or spread- 

 ing; spring leaves 3-5 cm long, oblong- 

 spatulate, narrowed to a margined pet- 

 iole, mucronate, lax, clothed with a pu- 

 bescence denser and softer than that 

 of the later leaves, soon withering and 

 leaving the main stems naked; rameal 

 leaves small (5mm), oblong-acute, 

 closely sessile, rigid, appressed, to- 

 gether with the branches somewhat 

 viscid and canescently villous with 

 long, softish hairs; involucre cylindri- 

 cal; scales in 5 series, villous; rays 

 S-12, ligules ovate, 5 mm long, minutely 

 3-toothed at the summit; short outer 

 pappus distinctly squamellate; hairs of 

 the achene toothed at apex." Parish, 

 Erythea 7:97. 



Witch Creek, San Diego Co. (Alder- 

 son); Santa Monica (Hasse); Los An- 

 geles (Davidson); Pasadena (McClat- 

 chie) ; Whitewater on the Colorado des- 

 ert (Parish). 



CHRYSOPSIS SESSILFLORA Xuttall. 



"Rather slender, erect, 2 ft. high, vis- 

 cid-giandular and sparingly hirsute; 

 leaves oblong, acute, subsessile: heads 

 few and sessile, or nearly so, at the 

 ends of the several fastigiate terminal 

 branchlets: achenes strong appressed- 

 pubescent: outer pappus indistinct, of 

 few rather long setae rather than pa- 

 leae. Santa Cruz to Santa Barbara, in 

 the California coast hills." Greene, 

 Erythea 2:105. 



APLOPAPPUS CRUEXTUS Greene. 



"Shrubby and h>w, the stout diverg- 

 ent monocephalous branches very leafy 

 and somewhat villous: leaves coria- 

 ceous, spatulate-obovate, an inch long 

 or more, glabrous, not veiny, closely 

 spinose-serrate: heads solitary, very 

 large (more than an inch broad and 

 nearly as high): involucre turbinate, 

 the scales closely imbricate in many 

 series, their appressed tips green and 

 glutinous: rays numerous, of a deep 

 saffron-red: achenes 15-nerved: pappus 

 of long and stiff not very copious un- 

 equal light-colored bristles." Greene, 

 pitt 2:17. Coronado Islands (Pond), on 

 the largest. 



APLOPAPPUS JUXCEUS Greene. 



"Xear A. spinulosus. but more slender, 

 sparingly leafy, the stems tufted, and 2 

 high, from a woody base: leaves linear 

 the lowest broader and pinnatifid, the 

 upper often only 3-toothed at apex, lobes 

 and teeth all spinulose-tipped: heads few 



and corymbose, \<z high: involucres turbi- 

 iiate, glandular-scabrous, not at all 

 pubescent; scaies setaceous-tipped: rays 

 numerous, light y. : akenes conspicuously 

 nerved." Greene, Bull. Cal. Acad. ScL, i. 

 190 (Aug. 2'j, 1&85.K 

 <D Co-San Telmo, Baja! 



EREM1ASTRUM ORCUTTII S. Watson. 

 "Pappus consisting of 5 white oblong- 

 ovate laciniate paleae and as many inner 

 alternate bristles twice as long: in every 

 other respect habit, foliage, pubescence, 

 involucre, etc. the nearly exact counter- 

 part of E. bellioides." S. Watson, Proc. 

 Am. Acad., xxv. 132-3 (Sept. 25, 1890). 

 Southwestern part of the Colorado desert, 

 San Diego County, California (C. R. Or- 

 cutt, April, 1889). 



ASTER EXSATUS Greene. 



"Tall, very leafy, rather closely pan- 

 icled above, the numerous short-pedi- 

 cellate heads rather large: stem gla- 

 brous below, the branches of the inflo- 

 rescence coarsely pubescent in lines: 

 leaves linear-lanceolate, acute, of firm 

 texture, slightly curved, the lowest 3 

 or 4 in. long, evenly and sharply ser- 

 rate, those of the branches and branch- 

 lets perfectly entire, very closely stiff- 

 ly and sharply setose-ciliolate: cam- 

 panulate involucres one-third inch 

 high, their linear bracts in 2 or 3 series 

 but nearly equal, the outer sometimes 

 wholly herbaceous, the inner with 

 dark-green tip and midvein: rays 

 about 30, pale-purplish or flesh-color. 

 Meadows about San Bernardino, Cal. 

 (Parish 3818)." Greene, pitt 3:223. 

 XYLORRHIZA TORTIFOLIA Greene. 



Tomentose-pubescent, at length gla- 

 brate, 2 ft. high: leaves oblong to nar- 

 rowly lanceolate, rigid, spinulosely 

 dentate and acuminate, sometimes in- 

 cisely pinnatifid, veiny: involucral 

 bracts lanceolate-subulate, rigid: rays 

 purple or violet, often 1 in. long: achen- 

 es sericeous-canescent: pappus at 

 length ferruginous, deciduous in a ring. 

 Utah: Arizona; Colorado and Mohave 

 deserts, Cal. 



XYLORRHIZA ORCUTTII Green* 



Greene, pitt 3:48. based on Aster orcuttii 

 Vasey and Rose, bot gaz 16:113: 



"Stems suffruticose, somewhat 

 branching, pearly white, glabrous: low- 

 er leaves obovate, 1-2 in. long, with 

 cuneate base: upper ones often oblong. 

 with broad sessile or somewhat clasp- 

 ing base, obtuse at tip, spinulose- 

 toothed. glabrous: heads solitary and 

 terminal on leafy branches, sessile or 

 nearly so, very large, an inch or more 



