B^i^'^y^- COMPOSIT.E. oKo 



entire pappus-scales, which extends from W. Arkansas tl.roncrl, <5 TT+ol, +« a a ■ 



lorn, with solitary slen.icr peduncled heads ..s^^rJ}:::^ L^^t Mlo.i^^^^^^ ' 



mk;cWiH°'^^®"'l ^'''^- ^ ^T^ v' *''° ^"-'^' tomeatose-canesceni; somewhat 

 laked with age: leaves narrowly linear, entire, minutely punctate : heads soli 

 tery on tilifonn peduncles terminating the branches : akei'ei glabrous : pappus of 

 oblong erosedacmiate chaffy scales, about a quarter of the length of the g andular 

 disk-corolla. — Proc. Am. Acad, vii 358 bi^nuuiar 



64. BAILEYA, Gray. 

 Head many-flowered, with .5 to 50 pistillate rays in one or more series; all the 

 flowers fertile. Involucre hemispherical, of numerous and nearly equal thin-herba- 

 ceous linear woolly scales, about in two series. Eeceptacle flat or barely convex 

 naked. Rays large, oval or oblong-cuneate, broadly 3-toothed at the apex, 7-nerved' 

 tapering into a narrow but not tubular base, becoming scarious-papery (but very 

 thin), persistent on the truncate apex of the akene. Disk-corollas tubular-funnel- 

 form above the short proper tube, 5-toothed ; the teeth glandular-bearded. Anthers 

 linear, minutely sagittate at base. Style-branches short, with truncate-capitate 

 apex. Akenes oblong-linear or slightly club shaped, somewhat angled, many- 

 ribbed or striate; the apex truncate, sometimes obscurely toothed by the extension 

 of the ribs, or in the ray callous-thickened. Pappus none. — Floccosely white- 

 woolly herbs (of the Arizona-desert region), apparently all annuals, a foot or so 

 in height; leaves alternate, soft, the upper lanceolate or linear, the lower once or 

 twice pmnatifid ; heads of yellow flowers terminating slender peduncles, mostly 

 showy from the abundance of the persistent, at length deflexed, thin and sulphur- 

 colored rays. — Gray, PL Fendl. 105, & Proc. Am. Acad. ix. 195. 

 now^ifir'ft "^V"^ commemorates one of our worthiest naturalists, the late Professor Bailev 



1. B. pauciradiata. Gray, 1. c. Slender, paniculately branched to the summit 

 somewhat villous as well as woolly: leaves mostly linear, the upper enttt 

 oT- tTl^m ll"'t/'T''r'""f '^= peduncleJslende;, seldoln' over !n'in h 

 3 o?4 W.T { '^l}"''^.''!-^^''^'^^^ •■ tbe oval rays 5 or 6 (short-unguiculate, only 

 withtnt^pS^ts.^'^ '''''-^'''''' '' '^ ''■■ '^^^"^^ --^^ -an;-striate,;ough' 

 Southeastern border of the State, on the Rio Colorado, in sand, CouUer, Schott, Cooper. 



the^ba^; ^fhf I'^^^'f *^' ^'f^' ^- ': ^^''°"^ floccose-woolly, much branched from 

 the ba.e the branches erect, terminating in mostly long solitary peduncles • lowest 

 eaves obovate or spatulate once or twice pinnatifld into oblong^r broadly liilaJ 



he r-w! 9^"?^'i'n '''''^ ^"^'^^ °' '^^^'"^ = ^'''''^ middle-sized an.l many-flowered: 

 the rays 25 to 40 in 2 or 3 ranks, dilated-obovate and broa.lly 3-toothed U or 5 

 lines long) : akenes angled with strong and striata with intermediate more slender 

 ribs, minutely scabrous or nearly smooth. 



tl.??*^°,""'''/^^"^'"'- ^?* ^common in Arizona, and through Sonora and Southern Utali to 

 the borders of Texas : perhaps not collected within the State. '-^ourmin to 



3. B. multiradiata, Gray, 1. c. Densely floccose-woolly : st.>m simple or 

 sparingly branched below, bearing long naked or sometimes scape-like ]H'd,uu:les 



