184 XX. HYPERICACEA8. j Exopeas. 
to Ark. About 2fhigh. Leaves 1—2’ by 2—4”, often somewhat lance-shaped. 
Flowers about 6” diam., with very numerous stamens. Aug. Sept. 
9. H. aureum. Bertram. (H. amenum. Ph.) Golden Hypericum. 
Branches spreading, ancipital; dvs. oblong, obtuse, attenuate at base, 
glaucous beneath; fis. few together, subsessile; pet. coriaceous, reflexed; sty. 3, 
connate, persistent on the ovoid-conic capsule.—A beautiful shrub, 2—4f high, 
native of S. Car. and Ga. Flowers large, orange-yellow. Stamens 100 or 
more. Capsulered. Jn.—Aug. 
10. H. nupirtérum. Michx. 
St. shrubby at base; branches winged; ls. ovate-oblong, sessile, obtuse ; 
cymes leafiess, pedunculate ; central fls. shortly pedicellate ; pet. obovate, longer 
than the linear sepals; sty. united—Wet grounds, Penn. to La. Plant 1—2f 
high, with numerous 4-sided branches. Leaves thin, about 2/ long, with minute 
reddish dots. Flowers small and rather loose in the cyme. Aug. t 
*** Stamens 5—20, distinct. 
11. H. mvrizum. (H. quinguenervium. Walt.) Small St. John’s-wort. 
St. erect, usually much branched, often subsimple, quadrangular ; lws. 
obtuse, ovate-oblong, clasping, 5-veined, minutely punctate; cymes leafy; pet. 
shorter than the sepals; sta 6—12.—@ Damp, sandy soils, Can. to Ga. W. to 
Ia! Stem 3—6—9/ high. Leaves closely sessile, apparently connate, 4—8” by 
2—5”, outer veins obscure. Flowers minute. Jl. Aug. 
12. H. Canapense. Canadian St. John’s-wort. 
St. quadrangular, branched; 7Zvs. linear, attenuated to the base, with pel- 
lucid and also with black dots, rather obtuse; sep. lanceolate, acute, longer 
than the petals; sta. 5—10.—@ Wet, sandy soils, Can. to Ga. Stem 8—15/ 
high, slightly 4-winged. Lower branches opposite, upper pair forked. Leaves 
about 1’ by 1—2”, sometimes linear-lanceolate, radical ones obovate, short. 
Flowers small, orange-colored. Ovary longer than the styles. Capsule’red, 
longer than the sepals. Jl. Aug. 
13. H. sarotHra. Michx. (Sarothra gentianoides. Linn.) 
St. and branches filiform, quadrangular; lvs. very minute, subulate; fs. 
sessile.—Dry fields and roadsides, U.S. and Can. Stem 4—® high, branched 
above into numerous, very slender, upright, parallel branches, apparently leaf- 
less, from the minuteness of the leaves. Flowers very small, yellow, succeeded 
by a conical, brown capsule which is twice the length of the sep. Jl. Aug. 
14. H. Drommonnu. Torr, & Gray. (Sarothra. Grev. g Hook.) 
Branches alternate, square above; /vs. linear, very narrow, acute, longer 
than the internodes; fs. pedicellate; sta. 10—20; sep. lanceolate, shorter than 
the petals, but longer than the ovate capsule-—Near St. Louis, &c. Plant 
more robust than the last, nearly 1f high, very branching. Leaves 3 long. 
Flowers about 4” diam. 
3. ELODEA. Adans.’ 
Gr. ewdns, marshy; from the habitat of the plants. 
Sepals 5, equal, somewhat united at base; petals 5, deciduous, 
equilateral ; stamens triadelphous, the parcels alternating with 3 hy- 
pogynous glands; styles 3, distinct; capsule 3-celled —% Herbs with 
pellucid-punctate leaves, the axils leafless. | 
1. E. Vireinica. Nutt. (E. campanulata. Ph. Hypericum. Linn.) 
St. erect, somewhat compressed, branching; dvs. oblong, amplexicaul ; 
sta. united below the middle, with 3 in each set——Swamps and ditches, U. S. 
and Can. Whole plant usually of a purplish hue, 9—20' high. Leaves 14—2}' 
long, } as wide, upper ones lanceolate, lower oblong-ovate, all very obtuse, 
glaucous beneath. Cymes terminal and axillary. Flowers 5” diam., orange. 
yellow. Petals about twice longer than the calyx. Glands ovoid, orange- 
colored. Capsules ovoid-oblong, acutish. Jl. Sept. 
2. E. petioLata. Pursh. (Hypericum. Wait.) 
Lvs. oblong, narrowed at base into a petiole; fls. mostly in 3s, axillary, 
