miianthus. COMPOSITJE. 273 



Calif, i. 353. — California, from San Francisco Bay northward, Hinds (who got it at Bo- 

 degas), Bridges, Dulunder, Mrs. Ames. 

 H. exilis, Gray. A foot or so liigh, slender, commonly liirsute: leaves lanceolate and 

 ovate-lauceolate, sparingly denticulate, tapering into a slender petiole : heads from half to 

 nearly full size of tliose of the preceding : cusp of tlie cliaif a sleiuler awn, surpassing the 

 disk-flowers. — Proc. Am. Acad. vi. 543, & Bot. Calif. 1. c. — Plains throughout tlie northern 

 part of California. (The specimen from Owen's Valley, Van Horn, is probahly a depau- 

 perate //. petiolaris. ) 



* * * Stems branched from the base, diffuse or decumbent, slender. 

 H. debilis, Xutt. Scabrous to liispidulous or hispid : stems a foot to a yard long : leaves 

 from ovate to deltoid or obscurely hastate, occasionally subcordate, tliiunish, 1 to 3 inches 

 long, repand-denticulate to sparingly lubulate-deutate, slender-petioled : bracts of the invo- 

 lucre lanceolate and gradually subulate-acuminate : disk half-inch or more in diameter; its 

 chaffy bracts witli truncate or 3-toothed summit, the middle tooth aristiform-subulate : rays 

 half-inch or more long. — Trans. Am. Pliil. Soc. vii. 367 ; Torr. & Gray, 1. c. 320; the coast 

 form. //. prccroT, Engelm. & Gray, PI. Lindh. i. 13, form with more hispid stem. — Sandy 

 shores of Florida, W. Louisiana, and E. Texas. 



Var. CUCUmerifolius. A larger form, usually with purple-mottled stems, leaves 

 irregularly serrate witli salient teeth, more commonly subcordate, the larger 4 or 5 inches 

 long, and the ampler (15 to 20) rays an inch or more long. — H. CKriunerifolius, Torr. & 

 Gray, 1. c. 319. H. Lindheimerianus, Scheele in Linn. xxii. 159? — Sandy soil, often in 

 woods, Texas, common westward. 



§ 2. Perennials : recejitacle convex, or in some at length low-conical : lower 

 leaves almost always opposite. 



* Involucre loose (about half-inch higli). more or less squarrose in age, of subulate-lanceolate or 

 narrower mosth' attenuate-acuminate and abuost equal bracts: disk (upper part of corollas) 

 commonly but not always dark purple or turniug brownish : all but the lower leaves linear or 

 filiform and strictly one-nerved: slender creeping rootstocks, no tubers. 



E. orgyalis, DC Stem smootli and glabrous, often 10 feet high, very leafy to the top: 

 leaves mostly alternate, from long-linear (8 to IG inches long, commonly 2 to 4 lines wide), 

 or tlie lowest lanceolate, to almost filiform, slightly papillose-scabrous, the lower narrowed 

 into a petiole and sometimes serrulate: bracts of the involucre filiform-attenuate, those of 

 the receptacle entire : alceues oblong-obovate with a rounded summit, 3 lines long. — Notul. 

 PI. Ear. Genev. 12, & Prodr. v. 58G, excl. syn. ; Torr. & Gray, Fl. ii. 320. H. f/i(/aiifeus, var. 

 crinifns, Nutt. Gen. ii. 177? — Dry plains, Nebraska to Arkansas and Texas, west to S. E. 

 Colorado. 



H. angustif olius, L. Scabrous, sometimes hispidulous : stems 2 to 6 feet high, rather 

 sparsely leafy, slender : leaves thickisli, entire, wlien dry with revolute margius : cauliue 

 sessile (the upper luirdly narrowed at base), 3 to 7 inches long, mostly 2 or 3 lines wide, 

 paler and smooth or sometimes canescent beneath, many of them opposite ; radical some- 

 what spatulate or lanceolate : bracts of the involucre lanceolate and acute or atteuuate- 

 acuminate : rays numerous, incli long: disk generally dark-purple: receptacular bracts 

 entire or 3-toothed: akenes (barely 2 lines long) with broad truncate apex. — Spec. ii. 906; 

 Walt. Car. 216 ; Miclix. Fl. ii. 141 ; Bot. Mag. t. 2051 ; Bart. Fl. Am. Sept. t. 105; Torr. & 

 Gray, Fl. ii. 320. Coreopsis angustifolia, L. 1. c. 908 ; Mill. Ic. t. 224, f. 2 ; and Rudbeckia 

 anf/KstiJhlia, L. Spec. ed. 2, 1281. Lei(//iia bicolor, Cass. Diet. xxv. 436. — Wet ground, pine 

 barrens of New Jersey and Kentucky to Florida and Texas. 



* * Involucre closer, of more imbricated and unequal inappcndiculate bracts, none of them folia- 

 ceoiis: disk mostly dark-colored or dusky : leaves from lanceolate to ovate, rarel\' linear: herbage 

 not tomentose nor conspicuously cinereous : Atlantic United States species, one of them reach- 

 ing the Kocky Mountains. 



•1— Stems glabrous and very smooth or merely scabrous, leaf}- : leaves narrowlv to broadly lanceo- 

 late: chaff of receptacle entire, merely mucronate. 



H. Ploridanus, Gray. Stem from 2 to 6 feet high : leaves thinnish, bright green above, 

 sparsely liisjiidulou.s-scabrous, lanceolate, sparingly or obscurely denticulate, somewhat tripli- 

 nerved near tlie base, 2 to 4 inches long, 5 to 9 lines wide toward tlie base, often short-peti- 



18 



