ONAGKACEiE. 91 



(.(! V " -^ when young. leaves lanccolat(% entire, ncutc nt each end, nearly 



St - \vt>r ones spatulate. Flou^trs soliiaiy, axillary, iioilding before their 



t \ ' ■ ' . " < with very acute segments. I'tluls ohovate, eniar- 



i: ot the segments. Stanuiis 10, uuetiual. Ovary b 



lU^li-d. 



Yellow. % May— Aug. Low country. 2-3 feet. 



2. J. LErxocARrA. Stan liirsute, ereet, simple, or somewhat branched. 

 Iamvts lanceolate, almost sessile. Flowers axillary, on short pedicels. Cah/i 

 usually with 6 acuminate hairy lobes. Pttnh as long as the calyx. Stumvnx 

 10-12.' CnpnulcK linear, nearly jilabrous when mature. 



Yellow. Q June — Auj^. Southern Cieorgia. 1-2 feet. 



3. J. hEcx'KUENS. (Ludwi^ia Di'currrnif of Elite ti.) »S/<'m erect, glabrous, 

 branching, winded, branches slender. L<avt's ovate, lanceolate, decurrcnf, 

 closely st-sil(^ shining, with 2 inlands at the base. Flavors on square winged 

 peduncles with 2 cordate glands in the middle, segments of the calyx 1, acu- 

 minate, 5 nerved. PeUils obovatc. as lonir as the sefjmenis, caducous. Sfa- 

 mens 8. Oipfules 4-seeded, winded, on short pedicels. 



Yellow. % July— Sept. Damp soils very common. 2-3 feet. 



Gexts V. LUDWIGIA. 



Calyx 4.partc(l, tube angled or cylindrica]. Petals 4 or 

 none, ^lumens 2, apc.x of the ovary generally Hat. Stigma 

 capitate. Capsule quadrangular, 4-cellcd, many seeded. Per- 

 ennial plants growing in wet places. Flowers a.xillary or 

 spicate. 



1. L. ' "'V. iSVem erect, branchinfj, slightly angled, slightly scab- 



rous. /-■ lie, lanceolate, sessile, tapering at each extremity. /•Voit'- 



fT» axillary, ^nlitary on short peduncles; segments of the calyx, ovate, acu- 

 minate, sjirtaJing, 5 nerved, rctah caducous, as long as the caly.\. Cap- 

 sule with winged angles, cubical, wings ciliate. 



Yellow. % July — Sept. Low country. 3-4 ft. 



i. L. Prr.os-A S/rm hairy, or hirsute, erect, branching. Leaves ovate, ob- 

 ♦ . ■ lie or oblong linear, sessile, somewhat decurrent. 



/ t peduncles, large, segnients of the calyx ovate, lan- 



ceolate, spreading. L'fipsuh villous, nearly cubical, angles v.'inged. 

 Yellow. % August— Oct. Wet clay soils. 1-2 feet. 



3. L. ViRr.ATA. .V/cffi erect, virgate, slightly angled, pubescent, sometimes 

 branched. I ivate, or oblong, the upper linear, obtuse sessile, pubes- 

 cent. Flnux. y,lnrge on slender pedicels ; lobes of the calyx ovate, re- 

 Hexed- /'•''//.< larger than the segments. <^Viy)sw^' cubical, with winged angles. 



YcII'w. '71 May — Sept. In dry places. 2-4 ft. 



4. L- Linearis. Stem erect, branching, slender, glabrous, angled near the 

 «: ;mi •. Leaven linear, acute at each end. Flowers axillary, solitary, sessile. 



s of the calyx triangular, ovate. Petals oblong-ovate, sometimes 



r ^ 



1 yellow. % July — Sept. In shallow water. 10-20 in. 



5. L. Lixifolta. Stnn erect glabrous, branching from the base, slender, 

 r\r':,'!ed above. Ij'avts linear, tapering at the base. Flowers axillary, sessile, 

 I ir '»r than the preceding, lobes of the calyx ovate lanceolate. Capsule cyl- 



' -' ider. 



"4 July — Aug. Middle Georgia. 6-18 in. 



*i- L ' MCA. .Sirpwi erect, branching, slif'htly angled, glabrous. Leaves 



■liifhtly i: . ito, lanceolate, tapering at each extremity, slightly decurrent. 



ITtmrerM small, solitary, t^r clustered, apetalous, sessile, segments of the caly.i 

 •hori eerrulaie. Capnde cvlindrical, pubescent, with 4 furrows. 

 Yellow. % July— Sicpt. Southern Ga. 2-3 feet. 



