ORDER XOV. PKIMULACE^. 4:Til 



long, slender ; upper lip f>f the corolla larpo, slightly 3-lobed, lower 

 lip smaller; spur subulate, ciiiargiiiato. — Yellow. If. Sept. — Oct. 

 2—3 feet. 



5. U. sacca'ta. (Le Conte.) ^^r?// submersed, plabidus, terete. Lrnvca 

 alternate, 4 — 5-parted at the base, sej^inents dn idei], Avitli !<etact!ous 

 segments ; peduncles axillary, 1 — 2, generally l-flowered ; upper lip 

 of the corolla nearly round, shorter than the lower; the middle segment 

 of the lower lip oval, with reflexed margin ; spur subulate, covered by 

 the retlexed margins of the middle segment. — Purple. If. June — July. 

 Stagnant waters. Common. 1 — 2 feet. 



4. U. longiros'tris, (Le Conte.) *S^r?» floating. Zfavf.« divided, with 

 setaceous segments. F/owcrs on peduncles 2 — 3 iiiches long, 2-flowered ; 

 lips of the corolla obscurely 3-lobed, the lower one emarginate, ascend- 

 ing. — Yellow. If. June. Stagnant water. Car. and Geo. 



6. U. gib'ba, (L.) Stem floating ; peduncle 6 — 8 inches long, bearing 

 several small flowers. Corolla w'ith the lips obscurely lobed ; spur 

 shorter than the lower lip of the corolla, gibbous in the middle. — Yel- 

 low. U- June. In ponds in the low country. 



6. U. biparti'ta, (Ell.) Scape 2 — i inches high, bearing generally 

 several flowers. Corolla small; lips nearly entire, equal; spur obtu.se, 

 half the length of the corolla; lower segment of the calyx generally 2 

 cleft. — Yellow. If. October. In muddy places. 



1. U. biflo'ra, (Le Marck.) Stein submersed, slender. Leaves verti- 

 cillately divided with setactous segments. Flowers on axillary pedun- 

 cles ; peduncles long (3 — 4 inches), generally 2-flowere<l ; lips of the 

 corolla entire, or the up|)er one obscurely 3-lobed, reflexed, shorter 

 than the lower; spur subulate. — Y^'ellow. If. May — June. In stag- 

 nant water. 



8. U. persona'ta, (Le Conte.) Scape 1 — 2 feet high, slender, glabrous, 

 leafless. Flowers 4 — 10, rather large; upper lip emarginate; spur 

 subulate, slightly curved. — Yellow. If. July — Aug. In damp soils. 

 Middle Car. and Geo. 



9. U. seta'cea, (Mich.) Stem erect, setaceous, nearly leafless, with 

 a few ovate scales. Flowers on short, setaceous peduncles, 4 — 7 ; lowtr 

 lip 3-lobed, upper lip ovate ; spur subulate ; the lower lamella of the 

 Btigma incised. — Y'ellow. If. April — May. Wet soils. Common. 



Order XCV.— PRIMULA'CE^. {Primrose Family.) 



Calyx divided, 4 — 5-cleft, inferior, regular, ptr.sistent. Co- 

 rolla hypogynous, regular ; limb 4 or 5 cleft. Stamens insert- 

 ed upon the corolla, opposite to its segments. Ovary 1 -celled. 

 Style 1. Stiyina capitate. Capsule with central placenta. 

 Seeds numerous, peltate ; embryo straight, cylindrical. Her- 

 baceous plants, with opposite or wliorled leaves. 



Genus I.— LYSIMA'CHIA. L. 5—1. 

 (From tlie Greek /«.«./«, dissolution, ftnd mache, strife.) 

 CV/^y.r o-p;i nod. Coro//a rotate, 5 cleft. Stamens o. Sliy- 

 ma 1. Capsule 10-valved, globose. 



