Monoloina. COMPOSHVE. 383 



biculnlo, liiirely smootli. l?nys Imicly two lines in lonj,'tli. oval, Hlifjlilly S-cronato nt tlio end. 

 Disk-corollas with almost canipaniilate linili ; the ovate tcctli or short loiics nearly iR-aiilless. As 

 this has not only the pappus but the narrow piisniatie akcjies of Jidhia, it is relerred to this 

 genus, as iJcntham suggested, notwithstanding the ganiophyllous involucre. 



70. MONOLOPIA, DC. 



Head many-flowcrcd, with 8 to 10 pistilhite rays; some of tlio disk-flowers often 

 sterile. Involucre a single (or in M. minor somewhat double) series of tliin-herba- 

 ceons flat equal scales, united at base or iiito a hemispberical ctip. Ivcccptacle more 

 or less conical, naked. IJays broad, 2 - 4-toothed or lobed at the summit, some- 

 times with an opposite small lobe or appendage at the base of the ligule : disk- 

 corollas with a rather slender tube and a dilated-funnelform or cainpanulato throat 

 or limb, the ovate lobes more or less bearded. Anthers tipi)ud with ovate append- 

 ages. Style-branches truncate-obtuso. Akenes obovate or oblong, quadrangular- 

 com])ressed or flatter, the outer ones obcomprcssed or triangular, with terminal 

 areola small, wholly destitute of pappus. — Californian floccoso-woolly or cottony 

 animals : with mostly alteruato or aonu'times niaiidy opposite entire or piiinately 

 parted leaves, and terminal slondor-i)eduncled lioads of yellow ilowei-s. 



The tyjjc of the genus, our seeond section, is jU. mnjor. Excc|)t for this species it were better 

 to inclucle the first section in Bahin. Tlie best character of the genus is furnished by the 

 broader and flattened akenes, supplemented by the constant absence of pappus, — not in tlm 

 gamophyllous involucre, which varies in the original species, and nearly fails iu one form of it. 



§ 1. Loir, a span high: leaves (alternate) not claspinfj, sometimes jyetiolc.d and pi n- 

 natifiii : rays destitnte of the little appendage, barely 2 - Ztoothed at the apex. 

 — Pheudo-Bahia, Gray. 



1. M. bahiaefolia, l>enth. Slender, Avhiti.sh with close cottony wool : loaves 

 linear-ol)lanceolate or spatulatc and entire, or some of them obtusely 3-lobed (about 

 half an inch long) : scales of the involucre united about to the middle : akenes 

 hairy, especially towards the rounded suinjuit. — PI. Ilartw. 317. 



Var. pinnatiiida, Gray. Leaves (sometimes an inch long) nearly all once or 

 oven twice pinnatcly i)artod into oblong or linear lobes. — Afnnolopia Ileermanni, 

 Durand. 



Ilillsidns, &;c., Valley of the Sacramento, narlu'c<j. The variety, Calavorns To., Dr. /frrrmniin. 

 Also near Auburn, Placer Co., Bolnndcr. Involucre broadly camj)anulato or hemispberical, '2^ 

 lines high. Kays about 8, oval or oblong, 2 or 3 lines long, lleceptacle, at least in the variety, 

 narrowly conical. Akenes a line long, rather broad and fl.attish, with small areola. 



2. M. minor, T)C. Loosely very woolly, mostly pinnately 3-.5-p;uted into 

 linear divisions : scales of the involucre united only below the middle, rather obvi- 

 ously in two series : ovary glabrou.s. — Hook. Ic. PI. t. 313. 



California, the locality unknown, collected only by Dniii/his. Head hemispherical : receptacle 

 apparently little elevated. Dvarics obovate-oblong. Lobes of the corolla bearded. 



§ 2. Larger: leaves entire or somewhat toothed, ses.vle and partly clasping: rays 

 dilated, coar.<^elg 3 - i-toofhed or lobed at the stinunif, the base on the opposite 

 side of the •'<tyle appendaged with a small and rounded denticidate lobe. — 

 True MoN'OL<jPiA. 



3. M. major, DC. White or whitish with floccose wool, sometimes })ecomiug 

 glabrate and green, a .^pan to 2 feet high : leaves varying fnnu linear to broadly 

 lanceolate or the upper lanceolate-oblong, entire or coai-sely and uueipially ropand- 

 sorrate : scales of the broadly campanulate or hemispherical involucre united to or 

 above the middle: akenes glabrous or very minutely hirsut.e-ind)erident. — Hook. 

 h;. PI. t. 344, it I'.ot. iMag. t. :5S3<). 



