GiUierrema. COMPOSITE. 115 



21. GUTIEIIR£;ZIA, Lag. (Named for some member of the noble 

 Spanish familr, Gutierrez.) — Herbs or sufl'rutescent phmts (X. A: S. American), 

 glabrous, often glutinous ; with narrowly linear and entire alternate leaves, and 

 small heads of j-ellow flowers, either solitary terminating the branchlets, or in 

 dense cymes in the manner of O'l/ui/iusjiefi/ia, from which it is distinguished 

 mainly by the pappus. — Nov. Gen. l>c Sjioc. 30; Hook, i.^ Arn. Comp. Bot. Mag. 

 ii. 51 ; Torr. l\; Gray. Fl. ii. 193. Brachyris. Xutt. Gen. ii. 103. Brachyachyris. 

 Spreng. Syvt. iii. .")74:. Brachyris (excl. spec, and § 2), Heiniachyris, •k Odunto- 

 carp/ia, DC. Prodr. v. 312. 71. 



G. lin'e.-veif6lia, Lag., the original species (of which no specimen named liv La^asca is 

 extant), on account of the oblong involucre with bracts loose at apex, enclosiuLC only about S or 

 10 flowers, may with the highest probability be referred to a Chilian species, the Dmcluiris 

 panicu/ala, DC. Prodi, v. 313; and this, although not traceable at Madrid, was collected ly 

 Xee. and has been communicated to herb. DC. and herb. Boissier, to the latter by Pavon. 



§ 1. Pappus of ray and disk similar, or in the former shorter: linules mostly 

 short : involueral bracts in X. American species all appressed. — Brachyris. Xutt. 



^ Suffriuicose. and the woody base much branched; heads fastigiately or panicidately c-.TUOse: 

 receptacle plane or small: palea of the pappus conspicuous, from narrowly oblong to linear- 

 subulate. 



■ G. Eutliainise, Toee. & Geat. Bushy, from glabrous to hirteUous-puberulent, 6 to IS 

 inches high, with mostly strict and fastiLi'iately polycephalous branches : leaves narrowly 

 linear, verging to filiform : heads mostly clavate-oblong. few-several-flowered, not over 2 

 lines long, some short-pedunculate, others 3 to 5 in a glomerule (in the manner of '■o idago 

 § Euthamia): flowers of disk and ray not numerous (commonly 3 or 4 each, or the latter 



5 or 6, sometimes onlv one or two each): akeues sericeous-pubescent. — .^nnirfro .>w,oMr(T, 

 Pursh, Fl. ii. 540. Braclii/ris £uihami(t, Xutt. Gen. ii. 163; Hook. Fl. ii. 23. B. Euthamice 



6 B. diiwicuta. Xurt. Trans. Am. Phil, ^l'c. vii. 313, the latter an open form. Brachi/adiy) is 

 Eutl«uiii\v. S].rcii;. ."Svst. iii. 574. Gulieirezi-i Enlhamia &. G. dicaricala, Torr. & Gray, Fl. 

 ii. 193. — Arid pl.iiiis and rocky hills, Saskatchewan to ^Montana, sontli to Xew Mexico, 

 Arizona, and borders of California. (-Vdj. Mex., where there is aUo a form with rather 

 broadly linear leaves, coll. Berlandiei; Tlmrber.) 



Vax. microcepliala. He.ils smaller, narrower, few-flowered, commonly obhng- 



cvlindraceous and the involucre of fewer and narrower bracts : tlu« er.~ of disk and ray mci>tly 

 reduced to one or two each : leaves either narrowly linear or nearly filiform : pappus, as iu 

 the species, varying from short-oblong and obtuse (as in Berlaudier's >.dtillo specimens) to 

 linear-lanceolate, and even attenuate-acute (as in Parry & P.almer'sl: certainly passes into 

 G. Euthamia'. — G. microcephala, Gray, PI. Feudl. 74, PI. Wright., &c. G. miaophyUa, 

 Durand i Hilgaril. PI. Heerm. 40. Brachyris micron phala. DC. Prodr. \. 3li. — S. Texas 

 and New :>rexico to S. California. (Adj. Hex., first coll. by Berlandiei:) 

 G. Calif ornica, Tore. & Geat, 1. c. ilore loosely branched : heads seldom glomerate- 

 f.iscicled, obovate-turbinate, 2 or 3 liues l.'iig: involueral bracts (except small outermost) 

 broad, oblons to obovate : rays S to 10, short: disk-flowers 6 to 12 : akeues more villous. — 

 Brachi/n's Calirornioi. DC. 1. e. G'ltierrfzia linearifolia (with some of G. Eathann'i), Gray, 

 Bot. Calif, i. .102. not Lag. — HiUs, California near the coast, from ban Fraud-co Bay south- 

 ward I first coll. bv Dmi'i'os): also San Bernardino Mountains {Parish), and AIesa> of Ari- 

 zona, Pahm-r. Lnnmon, Pringle. 



* * Annual herbs, locfoly much branched: heads singly terminating the branchlets and panicu- 

 late: involucre hemispherical or obscurely obovate, alwut 2 lines in diameter, many-rl.wered: 

 rays 9 to 15: disk-flowers 20 to 30: receptacle more or less elevated and hirsute-limbrillate : 

 akeues very short, obovate or turbinate, 10H,x>tate ; the ribs very silky-villous. 



- G. spheeroceptiala, Gray. Low : receptacle of the flowers obtusely conical or hemi- 

 spherical: pappus of 5 or 6 ovate short coroniform-concreted paleae, barely half the length 

 of the akene. — PI. Fendl. 73. PI. 'Wright, ii. 79. — S. W. Arkansas, E. Xew Mexico, and 

 S. W. Texas, Fendler, ]Vright, ic. 



