HYPERICACEjE. (ST. JOHN's-WORT FAMILY.) 51 



8. II. <lolabrif6rme, Vent. Stems branched from the decumbent 

 base, woody below (6' -20' high), terete; leaves linear-lanceolate, widely spread- 

 ing, veinless ; cyme leafy, few-flowered ; sepals oblony- or ovate-lanceolate, about 

 the length of the very oblique petals (5" -6" long) ; pods ovate-conical, pointed,, 

 strictly l-celied, the walls very thick and hard. (H. procumbens, Michx.) Dry 

 hills and rocks, barrens of Kentucky and westward. June - Aug. 



9. II. spliaerocarpoil, Michx. Stem simple or branched above, her- 

 baceous, scarcely angular (l-2 high); leaves widely spreading, obtony-lineat 

 or lanceolate, very obtuse, thickish, nearly veinless ; cyme compound and many- 

 flowered, flat, naked; sepals ovate; pods depressed-globular, strictly I -celled, rather 

 thin. Rocky banks of the Ohio and Kentucky Rivers. July, Aug. Petals 

 about 3" long. 



10. H. niidiflorum, Michx. Stems branched, woody at the base, 

 sharply 4-anglcd or almost winged above (l-4 high); leaves oblong or oval- 

 lanceolate, obtuse, obscurely veined, pale ; cyme compound, many-flowered, 

 naked; sepals oblong ; pods ovate-conical, pointed, almost 3-celled. Low grounds, 

 Pennsylvania to Illinois and southward. July. Petals 3" -4" long. 



# * Sepals herbaceous, erect, equal : styles 3, separate. 



11. II. ailgtllosiim, Michx. Stem slender, strict, simple, sharply 4- 

 angled, herbaceous (l-2 high); leaves opaque, ovate or oblong-lanceolate, 

 acute ('-!' long), ascending, closely sessile by a broad base ; cyme compound, 

 naked, the branches prolonged and ascending, with the scattered flowers raceme- 

 like ; sepals enclosing the ovoid 1 -celled pod. Wet pine barrens of New Jersey 

 and southward. Only- Sept. Petals copper-yellow, 4"- 5" long, much longer 

 than the calyx, furnished with a tooth on one side. 



$ 4. Stamens 5 - 12, distinct or in 3 clusters : pod (broivn-pnrple) I -celled, with 3 

 strictly parietal placentce : styles short, distinct : petals oblong or linear, small : sepal 

 narrow, erect : slender annuals, with 4-angidar branches. 



12. H. mfltilinit, L. Stem flaccid, widely branching (6' -10' high); 

 leaves ovate or oblong, obtuse, partly clasping, 5-nerved ; cymes leafy ; pods ovate* 

 conical, rather longer than the calyx. (H. parviflorum, Mtilii.) Low grounds, 

 everywhere. Flowers 2" broad. 



13. H. CaiiadeilSC, L. Stem strict (6' -20' high), with the branches 

 erect : haves linear or lanceolate, 3-nerved at the base ; cynics naked ; pods conical- 

 nhlor.'j, usually muck longer than the calyx. Wet, sandy soil: common. June 

 Oct. Flowers copper-yellow, 2" -3" broad when expanded. 



14 H. Drilllllliotlflii, Torr. & Gray. Stem and the mostly alternate 

 bushy branches rigid, erect (10' -18' high); leaves linear-subulate, nearly erect^ 

 \-nerced (3" -9'' long) ; flowers scatter<d along the upper part of the leafy 

 branches, s/toit-pedicelled; pods ovoid, not longer than the calyx. (Sarothra Drum- 

 mondii, Grev. ^ Hook.) W. Illinois and southward, in dry soil. July -Oct. 



Sepals 2" -3" long, mostly exceeding the petals. 



15. II. Sarothra, Michx. (ORANGE-GRASS. PINE-WEED.} Stem and 

 bushy branches thread-like, wiry (4' -9' high); leaves minute awl-shaped scales, 

 oppressed ; floioers mmute, mostly sessile and scattered along the erect branches ; 



