2S 



CONTlilBUTloNS FHdM TIIK NATIONAL HKKHAKIUM. 



<!. Hydrocotyle australis ('. tSc H,. sp. ik)v. 



//. ninhiii lifittoii \ l?rn\vii, 111. Fl. 2: MO. iS!t7, as Id liahit sketch, imt as to 

 (it'scriytioii. 



I'mhcls t'cw-rtowprcd, proliferous, with :> to ♦', verticils, sometinuvs 

 sliijhtly briuiclu'd; p(>(li('els 2 to 4 mm. Ioii<:': t'niil -i mm. lon^,^ slij^htiy 

 ))i'oiul('r. rounded at base. 



Type locality, shore of Lake Worth. Florida; collected l)y Citrflss^ 

 IK), t^',^~i\, in iSlt.'); type in V. S. Nat. llerh. 



Virginia (Dismal Swamj)). Florida. Texas. 



S/K'ci incus r.nuiiilK'il : 



Vihiiinia: Dismal Swam]), I'ullurd ^1\, May :!(>, .Iiiiic, ISlKi. 



Fujkida: CIki/iiikiii ; lu-ar Jacksoiivillt', i 'nrli.ix WJ, VM)4: slmrc nf T.akc Worth, 



r(ov;.v.v .");!7s, May .s, isitri. 

 Missi.ssii'im: Morn Island, T/vrry 44415, .Finic 1, iSitS. 



Tk.\.\s: IH'I Rio, Xidl/ri/ 244, Scptcnilpcr, iS!i(»; river near San .\ntonio, Drnri/, 

 .lune It, IWIt; near Iverrville, Kerr Comity, llilhr tit:!.",, .Fnne -Jd-UO, lSi)4. 



7. Hydrocotyle cuneata ('. tSc H.. sp. nov. Fic. 1. 

 rml)els fe\v-Ho\vered. proliferous, sometimes sliohtly hranchino-; 



jM'dicels very short; fruit 2 nun. lono-, 'A to 4 nun. broad, taperinif to 

 tile pedicel by a very distinct cuneate base. 



Type locality, Montezuma Well, Arizona; collected by />. 7'. A/nc- 

 DniKjal, no. 575, in 1S1>1; type in V. S. Nat. Herb. 



Western Texas to southern California and extendino- northward to 



the region about San Francisco. 



Spcchiinis I'jximiiicd: 



Tk.\.\s: New Hrauiifels, Liii'llirinur I, .Iiiiie, 1847. 



Nkw Mexico: Wrii/hl \:WA. 



Arizona: /'(ilmn; in 1S(1!); Sanoita \'alley Springs, Loninnn 2710, June, 1H.S2; 



Moiite/.miia well, Marlhmifil r)7."), Au^nist 7, ISOI; Catalpa, MarDoiK/til, 



Septeinl)er, 189t. 

 Calikoknia: Suisiui Marsh, Solano Cotiiity, fhrntr, in ISS;'; San TiUis Ol)ispo, 



LcninKHirtl,, J niH', 1HS7; Colorado Desert, San I)iey;o Comity, Orcatl, Ajjril, IHH9; 



Santa Bartuira, Mrs. IHikjIkiih ; Sonoma Creek, Mrs. Ilulvhinys, Au^rnst, 18H8. 



8. Hydrocotyle americana L. Sp. PI. 1: 2)54. 1758. 



Stems liliform, branchinj^and creepino', often bearino- small fusiform 

 tubers; leaves thin, round reniform, crenate-lobed and lobes crenate, 

 shining; few-tlowered umbels axillary and almost sessile; fi'uit about 

 1 mm. broad, with evident ribs and no oil-bearing* layer; seed section 

 broadly oval. 



Type locality, "septentrionalis America;'*' collected l)v Kalm. 



From northeastern Canada to Minnesota and south to the mountains 

 of North C'iirolina. 



Specimens exa )ti in e.d: 



Canada: Ba.«s River, New Hrunswick, Foirler, Aufrust 9, 1875. 

 Maine: Foxcroft, valley of I'iscatacpiis liiver, Feriiuhl :V20, July 23, 1895. 

 MASSACHrsETTs: Amherst, Mrs. A. F. Sterens, .Inly 2, 1895. 



Connkcticit: (Ireens Farms, Pall(ir<i 224, August 7, 1894; Fairiield and Mitford, 

 Eame.% in 1894 and 1895. 



