nvrr.RicACE.K. (st. .iohn's-wort kamilv.) 41 



than the calyx (II. amoenuni, Pursh.) — Banks of the Flint River, Georgia to 

 Tennessee, and westward. June -August. — Stem 2° high, difl^'usely branched- 

 Leaves 2' -3' long. Flowers 2' wide, with recurved orange-colored petals. 

 ->-<• +* Ci/iiifs leafless, hracted. 

 10 H. nudiflorum, Michx. Branches 4-anglcd ; leaves oblong, obtuse, 

 narrowed at the base, paler beneath ; cymes tcmiinal, peduncled, 5- 15-flowered ; 

 bracts subulate ; buds globose ; petals oval, twice as long as the oval sepals ; 

 capsule ovate, longer tlian the calyx. — Low grounds, Florida and northward. 

 July and August. — Shrab 2° -3° high. Leaves thin, l'-2' long. Flowers 

 ^' wide. Petals recurved. 



11. H. eistifolium, Lam. Branches 2-edged ; leaves rigid, linear-oblong, 

 sessile ; cymes terminal, compound, many-flowered ; bracts subulate ; buds 

 ovate ; petals spreading, obovate, twice as long as the oblong, iine(|ual sepals ; 

 capsule 3-lobed, ovate, longer than the sepals. (H. rosmarinifolium, Ell.) — 

 Pine barren swamps, near the coast, Florida to South Carolina and westward. 

 July- September. — Shnib 2° - 3° high. Leaves very numerous, 1' long. Flow- 

 ers \' wide. Valves of the capsule strongly impressed on the back. 



12. H. fastigiatum, Ell. " Branches somewhat compressed ; leaves nar- 

 row-lanceolate, very acute ; corymbs terminal, many-flowered, fastigiate ; styles 

 united. — Pine ban'ens of Scrivcn County, Georgia. May -July. — Shrub 3° 

 high. Leaves 3' long, narrowed but connate at the base. Flowers very numer- 

 ous." EUioU. ( * ) 



-"- -1- Herbs : styles distinct, 



13. H. graveolens, Buckl. Stem smooth, terete, nearly simple ; leaves 

 oblong-ovate, obtuse, clasping ; cymes lateral and terminal, many-flowered ; 

 petals oblong-obovate, much longer than the lanceolate acute sepals ; stamens 

 collected in three sets, as long the petals ; styles slender, twice as long as the 

 ovary. — Mountains of North Carolina. July and Augnst. — Stem 2° - 3° high. 

 Leaves 2' long. Flowers large. 



14. H. pilosum, Walt. Downy ; stem terete, mostly simple, slender ; 

 leaves small, lance-ovate, acute, erect, sessile ; cymes compound ; styles short. 

 (II. simplex, Mich.) — Wet pine barrens, Florida to North Carolina and west- 

 ward. July and August. ® 1 — Stems l°-2° high. Leaves j' long. Flowers 

 5"- 6" wide. 



15. H. angulosura, Michx. Smooth; stem 4-angled, branching; leaves 

 ovate-lanceolate, acute, sessile; cpncs leafy, many-flowered, the branches often 

 simple ; sepals ovate, shorter than the petals, longer than the ovate capsule. — 

 Varies (H. acutifolium. Ell.) with larger shining leaves, compound and nearly leaf- 

 less cymes, and more crowded flowers. — Pine barren ponds (the var. in dry 

 soil), Florida to North Carolina and westward. June- August. — Stem 2° -3° 

 high. Leaves 6" - 12" long. Flowers small. Styles longer than the capsule. 



§ 2. Stamens 5-20 : capsule strictly I -celled : sti/les separate : annuals. 

 * Flowers in cymes. 



16. H. mutilum, L. Stems slender, branching abovi;, 4-anglcd, leaves 

 oblong or roundish, obtuse, clasping, 5-nerved ; cymes leafy at tlie base; sepals 



4 * 



