3C0 ItOItUAniXACEwK. (HOK.VfiK FAMILY.) 



the lower opjiosite ; sjiikcs filiform, 1 si.led , flowers sliort-pedioollcil, some of 

 tlHin leafv-hrarteil, others lir:u-lles» ; eorollii (J" long), wiiitc; mitii-ts united, 

 hisjtid at the a(iex, with the sides coiIXave. — Suutli Fhaida. — Stem 4'- 6' 

 high. I,( aMs r long. Condhi slightl\ hispid. 



5. H. Europseum, L. rulie.>iicnl ; leaves old. in;; oval, ulduse, long- 

 pet ioled ; spikes liraclless, hitenil and tirmiiial, single or in pairs; flowers 

 white. — Waste groimil. Introdiiied. 



» » 'J'liioal oj'tlw corolla closid or hearihtl. NitlUls 2, carh 2-seeded. 



6. H. Indicum, L. Annual; stem erect, rough-hairy ; leaves olilong- 

 ovatp, often (ordatf, tnoijiod or wavy on tlie margins, rugose, dernrreut into 

 a long ]ictiolu ; spikes hairv, coiled, at length elongated; corolla hlne ; nut- 

 lets spreading. — Waste jdaciis. June -Oct. — .Stem l°-2'' higli. Leaves 

 2' -4' I'lJig. I'rniling s])ike G'-9' lf>ng. 



7. H. parviflorum, L. I'erennial, liir.snte; .stem erect, hranching; 

 leaves lanceolate or oldong, obtuse, entire, tapering into a slender jjctiole, the 

 lower ones mostly opposite; spikes slender; corolla wliite, lieanled in the 

 throat ; nutlets uneven, united. — South Florida. — Stem 6'- 18' high. J^eaves 

 l'-2'lcing. Corolla 1" long. Spikes 2' -4' long. 



H. H. auchusSBfoliuni, I'oir. Stem villous, simjile ; leaves lanceolate; 



cyme compact, at lengtli spreading; flowers violel-hlue. — W'aste ground. 



Introduceil. 



5. ECHIUM, Tourn. 



Calyx 5-parted. Corolla fiinnel-forni, unequally 5-lol>ed, naked at the 

 throat. Stamens 5, unerjual, mostly exserted. Style filiform. Nutlets 4, 

 closed at the hase, uueven or rough. — Uerhs, with alternate leaves, and blue 

 or purple fiowers in spiked ofteu panicled racemes. 



1. E. vulgare, L. Hispid; stem simple, erect (l°-2° high); leaves 

 linear-laiueolate, sessile; flowers large, in short axillary racemose sjjikes; 

 corolla jiurple, pubescent, twice a-s long as tlie lanceolate calyx teeth, shorter 

 than the stamens and style. — Fields, N(jrt]i Carolina. Introduced. June- 

 Aug, d). 



6. ONOSMODIUM, .Mid.x. 



Calyx .^-parted, the lobes linear and acute. Corolla ovate-tnbiilar, naked in 

 the throat, with five acute, comiivent lobes. Anthers nearly sessile, sagittate, 

 included. Ovary 4-parted. Style smooth, exserted. Nutlets 1-4, ovoid, 

 shiniIl}.^ — Erect liisjiid herbs, with entire somewhat ribbed sessile leaves, and 

 greenish (lowers in a terminal bracted raceme or sj)ike. 



1. O. Carolinianum, DC. Rough with spreading wliite rigid hairs; 

 stem stout, branched ; leaves oblong-ovatc ; lobes of the corolla ovate, hairy; 

 calyx lol)es .scarcel}' twice as long as the dull white nutlets. — Dry soil in the 

 upi)er di.stricts. June. % — Stem 3° - 4° high. Leaves 2'-3' lonj;. 



2. O. Virginianum, DC. Rough with appressed bristly hairs ; stem 

 slender, sparingly branched; leaves lanceolate or oblong-lanceolate; lol)es of 

 the corolla lanceolate-subulate, bristly ; calyx lobes 3-4 times as long as the 

 white jxdished nutlets. — Dry pine barrens. May -June. 3^ — Stem l°-2° 

 high. Leaves 2' long. Corolla twice as long as the calyx. 



