836 HYDROLEACEZ. (HYDROLEA FAMILY.) ` 
acuminate; pedicels short or elongated; sepals linear-oblong, acute, two thirds 
the length of the pale blue or white corolla; stamens exserted. — Prairies of 
Alabama, Buckley. April. 
ORDER 97. HYDROLEACEA., (HYDROLEA FAMILY.) 
Glandular-pubescent or bristly herbs, with entire alternate leaves. 
Flowers regular, axillary and solitary or clustered, 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 corolla, and alternate with its lobes, the filaments oftener hairy. 
Styles 2, separate: stigmas capitate. Ovules numerous, anatropous. 
Capsule many-seeded, more or less 2-celled by the meeting of the 2 pari- 
etal placentæ, 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-parted. Corolla short, bell-shaped, 5-cleft; the lobes spreading. 
Stamens somewhat exserted, 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 placentæ, 2-valved. — Herbs, grow- 
ingin 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, hirsute, and branching 
above; leaves ovate-lanceolate, sessile; the veins and margins slightly pubes- 
cent ; flowers in a close terminal corymb ; calyx-lobes lanceolate, acute, bisp 
3 as long as the corolla. — Pine-barren ponds, in St. Stephen’s, South Carolina, 
Elliott. July and Aug.— Stem 2° high, creeping at the base. Leaves vy 
long. Corolla * azure, with yellowish veins and 5 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 vem 
tapering into a petiole; flowers axillary, the lower ones clustered, the upper sol- 
itary, short-peduncled; calyx-lobes linear, nearly as long as the corolla; 8f — — 
mens included; capsule almost 4-celled, by the introversion of the LM 
2-valved. — Pools and muddy banks of streams, Florida to North Carolina, ee 
westward. July and Aug.— Stem 19 - 39 long. Leaves 3'- 4! long 
Calyx 5-parted. Corolla tubular-funnel-shaped, 5-cleft, Stamens included, - 
| the filaments equal anthers reniform. Ovules numerous, anatropous, pendtlo 
at the axis, 2- or at length 4-valved. - Seeds 
2. NAMA, L. i 
