HYPERICUM. XX. HYTERICACE^E. 183 



oal, axillary, opposite. Leaves acute, not acuminate, those of the stem 2 5' 

 long, i as wide, of the branches about half these dimensions. Flowers IV diam. 

 Petals obovate, ' wide. Stamens capillary, 100 or more. Capsules 1' long, 

 ovoid-conical, tipped with the 5 styles. Seeds 00. Jl. Aug. 



2. H. PERFORATUM. Common St. John's-wort. 



St. 2-edged, branched; Ivs. elliptical, with pellucid dots; sep. lanceolate, 

 half as long as the petals. 7J. A hardy plant, prevailing in pastures and dry 

 soils, Can. and U. S., much to the annoyance of farmers. Stem 1 2f high, 

 braehiate, erect, round, with 2 opposite, elevated lines extending between the 

 nodes. Leaves 6 10" long, as wide, ramial ones much smaller, all obtuse, the 

 dots as well as veins best seen by transmitted light. Flowers numerous, deep 

 yellow, in terminal panicles. Petals and sepals bordered with fine dark color- 

 ed glands. Jn. Jl. 



3. H. CORYMBOSUM. Muhl. (H. punctatum. Beck.} Spotted St. John's. 

 St. erect, round, smooth, branching ; Ivs. clasping, oblong-oval, obtuse, 



covered with black dots; cymes terminal, brachiate, dense-flowered, corymbose 

 sep. ovate, acute. 7J. In wet meadows and damp woods, N. Eng. to Ark. Stem 

 1 \ 2f high. Leaves 12' long, nearly J as wide, with pellucid punctures be- 

 sides the black dots. Flowers small, numerous, pale-yellow, petals nearly 3 

 times as long as the sepals, with oblong black dots. Stigmas orange-red, on 

 distinct styles. Jn. Jl. 



4. H. ANGULOSUM. Michx. 



St. simple below, corymbosely branched above, sharply 4-angled ; Ivs. 

 somewhat ovate, closely sessile, scarcely punctate ; cymes leafless, compound ; 

 fis. alternate, solitary on the ultimate branches; sep. lanceolate, acute, half as 

 long as the petals. 7|_ Cedar swamps, N. J. to Flor. Stem nearly 2f high. 

 Leaves nearly 1' long, | as wide, rather distant. Petals obovate, brownish-red, 

 with a single lateral tooth near the apex. Jn. Aug. 



5. H. ELUPTICUM. Hook. (H sphserocarpon. Bart.~) 



St. quadrangular, simple, cymose at summit ; Ivs. elliptical, obtuse, some- 

 what clasping, pellucid-punctate; cyme pedunculate ; sep. unequal; sty. united 

 at base. % Low grounds, Uxbridge, Ms., Rickard! R. I. Olney, to N. Y. and 

 Penn. Stem 8 1G' high, slender, colored at base. Leaves 813" by 24", 

 somewhat erect, about as long as the internodes. Cymes of about a dozen 

 flowers, generally 1 2' above the highest pair of leaves. Central flowers sub- 

 sessile. Petals acutish, orange-yellow, 2 3" long ; sepals shorter. Stigmas 

 minute. July. 



* * Stamens 20 100, polyadelphous. Shrubs. 



6. H. KALMIANUM. Kalm's St. John's-wort. 



St. corymbosely branched ; branches somewhat 4-sided, two of the angles 

 slightly winged; Ivs. linear-lanceolate, very numerous, obtuse, attenuate at 

 base; cymes 3 7-flowered,fastigiate; sep. half as long as petals. Rocks below 

 Niagara Falls ! &c. A shrubby species a foot or more in height. LeaveS an 

 inch in length, slightly revolute on the margin, 1-veined, minutely and thickly 

 punctate, sessile. Branches slender and delicate. Flowers yellow. Stamens 

 very numerous. Aug. 



7. H. PROLIFICUM. 



Branching ; branches ancipital, smooth ; Ivs. oblong-lanceolate, obtuse, 

 narrowed at base, crenulately waved at edge ; cymes compound, leafy ; sep. un- 

 equal, leafy, ovate, cuspidate ; pet. obovate, a little larger than sepals ; sty. at 

 length distinct. A highly ornamental shrub, 2 4f high, prairies and creek 

 shores, Mid. and West. States ! Leaves 2 2J' long, 4 6" wide. Flowers f 

 diam., orange-yellow, in an elongated inflorescence. Stamens 00. Jl. Aug. f 

 0. T. & G. Lvs. much smaller ; capsule attenuate at summit. 



H. H. ADPRESSUM. Barton. 



St. shrubby at base, 2- winged above ; Ivs. oblong-linear, sessile, with 

 pellucid punctures ; fis. 15 20, in a leafless cyme ; sep. unequal, half as long 

 as the oblong-obovate petals; sty. united; caps. 3-celled. Swamp*, R. I.! Pa. 

 16* 



