33fi in nuoi.r.AOK.K. (iivduom.a iamii.v.) 



aciiiniiiati' ; [lodicels sliort <ir clonjriitcil ; sepals linrar-olilonfr, nnitc, two tliinls 

 the kn^'th of tlie jmle blue or wliilo corolla; Btauiens cxscriud — I'ruirics of 

 Alabama, BucLUi/. April. 



Ordkr 07. IIVDROLEACE.'T:. (IIvduomca Family.) 



Glandiilar-pubpscent or bristly herbs, witli entire alternate leaves. 

 Flowers regular, axillary and solitary or elustered, or in terminal corymbs 

 or coiled bracted spikes. — Calyx 5-parted. Corolla somewhat bell- 

 shaped, 5-lobed, imbricated in the bud. Stamens 5, inserted on the tube 

 of the eoroUa, and alternate with its lobes, the filaments oftener hairy. 

 Styles 2, separate : stigmas cajjitate. Ovules numerous, anatropous. 

 Capsule many-seeded, more or less 2-celled by the meeting of the 2 pari- 

 etal ])lacent;T?, 2- or rarely 4-valved, opening through the middle of the 

 cells, or at their margins. Embryo straight, in fleshy albumen. 



1. HYDROLEA, L. 



Calyx 5-partcd. Corolla short, bell-sliaped, 5-clcft ; the lobes spreading. 

 Stamens somewhat cxscrted, with the filaments dilated at the base : anthers 

 sagittate. Styles 2 (rarely 3), separate. Capsule globose, 2-celled, or imper- 

 fectly 4-celled by the introversion of the placenta:, 2-valvcd. — Herbs, grow- 

 ing in water or muddy places, with entire leaves, often with spines in their axils, 

 and blue axillary or corymbose flowers. 



1 H. COrymbosa, Ell. Spineless ; stem erect, liirsutc, and branching 

 above; leaves ovate-lanceolate, sessile; the veins and margins slightly pubes- 

 cent ; flowers in a close terminal corymb ; calyx-lobes lanceolate, acute, hispid, 

 I as long as the corolla. — Pine-barren ponds, in St. Stejihen's, South Carolina, 

 Elliott. July and Aug. — Stem 2° high, creeping at the base. Leaves I'-li' 

 long. Corolla " azure, with yellowish veins and ft white spots near the base." 

 Capsule 2-valved. 



2. H. quadrivalvis, Walt. Spiny ; stem ascending from a creeping 

 base, hispid, mostly simple ; leaves lanceolate, acute, pubescent on the veins, 

 tapering into a petiole ; flowers axillary, the lower ones clustered, the upper sol- 

 itary, short-ped uncled; calyx-lobes linear, nearly as long as the corolla; sta- 

 mens included : capsule almost 4-celled, by the introversion of the placenta;, 

 2-valved. — Pools and muddy banks of streams, Plorida to North Carolina, and 

 westward. July and Aug. — Stem 1° -3= long. Leaves .3' -4' long. 



2. NAMA, L. 



Calyx 5-parted. Corolla tubular-funncl-shapcd, .5-clcft. Stamens included, 

 the filaments equal : anthers rcniform. Ovules numerous, anatropous, pendulous. 

 Styles 2, distinct. Capsule oblong, many-seeded, seemingly 2-celled by the 

 meeting of the placentae at the axis, 2- or at length 4-valved. Seeds pitted. — 



