Eeleniam. COilPOSIT-E. 349 



•t— -!— Paleae of the pappn= acnminate, mncronatelv cnsj.idate. or awned, the eosta commonly 

 maiiife-t: heads with globose di»k and semi- or sul>globo=e receptacle: herbage puberalent. 



H. Mexicaxi-ji, UBK. {H. varium, >- hrader), by some said to be perennial, ha-s palete of 



the pappu~ from apiculate to aristellate-acuminate. To it may belon^^ Coulter's no. 357 (speci- 

 men too incomplete), ticketed " California," but proLaljIy belonginL' to his Jlexican collection. 

 H. puberulum, DC. Mostly tall, freely branching, and witL long monocephalons "pe- 

 duncles : leaves lanceolate or the lo^^ er broader, all entire : heads about half-inch in diameter : 

 rays one, two, or sometimes three lines long, efjualling or exceeding the small involucre, 

 rarely ob^ lete : palea; of the pappns ovate, short-awned, not half the length of the coroUa. — 

 Prodr. V. 667 ; Te.rr. & Gray, Fl. ii. SS.^ : Gray, Bot. Calif, i. 393. //. pubescens, Hook. & Arn. 

 Bot. Beech. 355, not Ait. //. Califunucum, Link. Ind. Si m. Berol. \Bw ? H. decurrens, 

 Vatke', Ind. ^eiii. Berol. 1S75. H. ^Jtyrnnum, Gray, Patif. R. Eep. iv. 107, probably. 

 C-i'halophora dfnrrfii.i, Less, iu Linn. vi. 517; DC. Prodr. v. 663. — Moist or wet ground, 

 California, common. 

 H. laciniatttm, Geat. A foot or two high, more cinereous : leaves lanceolate or linear, 

 pinnatifid-dentate or laciniate, or the upper entire: lieads 4 or 5 Hues in diameter: rays as 

 in the preceding : involucre commonly more i< jusjiic nous : paleae of the pappus more than 

 half the length of the corolla. — Proc. Am. Acad. ix. iu.i, & Bot. Calif. 1. c. — >. E. Cali- 

 fornia and adjacent Arizona, Coulter, &c. (.Vdj. !Mex.) 



* * * Rf'i >t perennial : rays sterile, either neutral or with abortive style and akene : lignles eqnal- 

 ling or exceeding the irl ^biilar disk : receptacle ovate : leaves mostly narrowly decurrent on the 

 stem and branches : paleje of the papyms aristate-acuminate, hardly half the length of the disk- 

 coroUa: heads on short slender peduncles. 



^»aH, nudiflorum, Xi tt. .Somewhat pnberulent, 1 to 3 feet high, vdih leafy branches and 

 corvml pr isely disposed heads : leaves from narrow ly lanceolate to oblong, entire, or the radi- 

 cal ob'jvate or sjiatnlate and dentate : rays half to three-fourths inch long, either pure yellow 

 or partly (sometimes wholly) brown-purple, once or twice the length of the brownish or 

 purplish disk : receptacle ovate, in age acutish, but sometimes rounder and very obtuse. — 

 Grav^ Proc. Am. -Vcad. ix. 2'J-3. excl. syn. U. pan-ijlorum. II. ruujijionim & H. micranthum ^ 

 Xntt. Trans. Am. Phil. Soe. 1. c. 354. U. qvadridenlatum. Hook. Comp. Bot. ilag. i. 98. 

 n. ritropiirpiireum, Kunth, Ind. "-em. Berol. 1845,21, purple-rayed state. H. >'minariense, 

 Feathennan in Louisiana Lniv. Rep. ISTl. Lfptopoda brachi;poda,ToTT. &. Gray, FL ii. 3SS ; 

 Cnrtiss, distrib., a very slender and small-rayed form. — Low ground, X. Carolina and Illi- 

 nois to Arkansas and Texas; and naturalized eastward. Hybridizes with H. mitumnale. 

 H. parvifloruin, Xctt. 1. e. Glabrate or glabrous, much branched and with scattered 

 small heads : leaves broadly lanceolate, with contracted base, sjiariugly denticulate, very 

 narrowly decurrent on the branches : disk and rays yellow, the former 3 or 4 lines in di- 

 ameter; the latter 3 to 5 lines long, sryliferous ; receptacle short-ovate. — Georgia, Xuttall 

 (a -pecimen named by him is ticketed Alabama) ; in a swamp near JIacon, J. D^/unell Smith. 

 Seeriiiiii:lv quite distinct. Simple-stemmed and low specimens with larger heads, Delaware 

 Co., Penn., verge rather to 3. autumnale. 



« « * « Eor>t perennial: rays fertile and conspicuous: stem or branches more or less winged 



bv the decurrent leave= : receptacle from half to two-thirds spherical: pappus with the paleee 



acuminate-ari-tate, not rarely somewhat lacerate or with one or two setLform teeth. 



-)— Heads cor^-mhose at summit of very leafy stem and branches; the disk globose: leaves mostly 



serrate or denticulate: flowering late. 



"■^"H. autumnale, L. Nearly glaLrous or minutely pubescent : stem narrowly winged, 2 to 6 



feet high: leaves lanceolate to ovate-oblong: heads about half-inch in diameter, nsually 



enualled by the ravs : paiiiai- commonly half or two-thirds the length of disk-coroUa. — 



Si.ec. ii. S66 ; Lam. 111. t. gYs : Sehkuhr, Handb. i. 2.)0 : Bart. Fl. Am. Sept. t. 26 : Hook. Bot. 



:Mat>-. t. 2994; Torr. i Gray, Fl. ii. 3>4. H. longl folium, Smith in Rees Cyi 1. II. pumilum, 



Wiiid. Enum. Suppl. 60, mav be a common dwarf form. H. j.'ihescens. Ait. Kew. iii. 257. 



H. canaliculatum. Lam. .Jonr."Hi<t. Xat. ii. 213, t. 35, & H. l.,h„i;fl.,r„in, DC. Prodr. v. 666, a 



state with tubulose ligules. H. altis.iitinim & H. commntatum. Link, Ind. Sem. Berol. lS4iJ. 



H. (jrandiflorum, Xutt. Trans. Am. Phil. Sue. vii. 3S4, larger-flowered form. H. montawno, 



Xutt. 1. c. — "tt'et ground, Canada to Georgia, Texa-. and westward to Brit. Columbia and 



Arizona; the var. grandiflorum, with rays three-fourths inch long, only in the northwest. 



