1 I- ()NA(;KA( K.K. (r.VKNING-PRIMROSE FAMILY.) 



9. L. capitata, ^lidix. SmoDtli ; Ptetn nifxtly t>iiii])li', Klciulcr, angled 

 nbovi' ; Icavi-s long, laiUTolate, ni-ute, sessile, the lowest ones broader uiid ob- 

 tuse ; flowers ill a eompaet oblong or ovate head, the lower ones sometimes 

 seatteivd ; petals minute, mostly wanting ; capsule obtusely 4 -angled, somewhat 

 narrower at the base, longer than the calyx-lolx-s. — Wet pine barrens, Florida 

 to North Carolina. July and August. — Stem 2° - 3° high. 



10. L. lanceolata, Ell.? Smooth; stem stout, terete, at length much 

 branched ; leaves lanceolate, sessile ; flowers very numerous, in all the axils, 

 green ; petals none ; capsule cubical, with the sides flat and the angles mar- 

 gined, twice as long as the calyx-lobes; seeds cylindrical. — I'onds and swamps 

 in the pine barrens, Florida and Georgia. July -Sept. — Stem l°-2° Ligl . 

 Flowers small. 



11. L. alata, Ell. Smooth; stem slender, simple or sparingly branched 

 near the summit, strongly angled ; leaves cuneatc-lanceolate, obscurely denticu- 

 late ; flowers few, near the summit of the branches, white ; petals none ; capsule 

 cubic-obconical, with concave sides and winged angles, as long as the calyx- 

 lobes ; seeds ovoid. — Brackish marshes, Florida to North Carolina, and west- 

 ward. July and August. — Stem 2° - 3° high. 



12. L. microcarpa, jNIichx. Smooth; stem low, creeping at the base, 

 3-angled, mostly siniiilt; ; leaves spatulate-obovate ; petals none ; cajisule mi- 

 nute, cubic-obconical, shorter than the calyx-lobes. — Muddy places, Florida to 

 North Carolina, and westward. July and August. — Stem 6' - 12' high. Cap- 

 sule scarcely larger than a pin'.s head. 



* * * Stems creeping : leaves opposite. 

 t- Petals none. 



13. L. palustris, Ell. Smooth; stems diffuse; leaves obovate, tapering 

 into a long petiole ; ea])sulc oblong or obconieal, obscurely 4-sided, longer than 

 the calvx-lobes. — Ditches and muddy places, common. June- Sept. — Stems 

 r)'-12' long. 



14. L. spathulata, Torn & Gray. Pubescent and somewhat hoary; 

 leaves spatulate-obovate ; capsule ovoid ; otherwise like the preceding. — Mur- 

 gins of pine-barren ponds, Middle Florida. July and August. 



-^ •*- Petals 4. 



15. L. natans, EU. Smooth; stems diffuse; leaves obovate, acutish, ta- 

 pering into a long petiole; flowers sbort-pedicelled ; petals roundish, as long as 

 the lobes of the calyx ; capsule obtusely 4-angled, narrowed at the ba.sc. — 

 Marshes and margins of streams, Florida to North Carolina, and westward. 

 July- Sept. — Resembles No. 13, but is every way larger. 



16. L. arcuata, Walt. Smooth; leaves lanceolate, naiTowed at the base, 

 acute ; flowers on peduncles usually longer than the leaves, 2-bracted at the 

 base ; calyx-lobes linear-lanceolate, shorter than the obovate petals ; capsule cla- 

 vatc, curved. — Muddy margins of ponds, &e., Florida to North Cuioliua. July. 

 — Stems 4' - 8' long. 



