436 HYPERICACEAE. (Vor. IL 
3. SAROTHRA L, Sp. Pl. 272.1753. 
A low annual much-branched herb, the opposite leaves reduced to subulate scales, the 
mostly opposite branches erect-ascending, the very small yellow flowers alternate, very 
short-pedicelled or sessile along them in the axils of still smaller scales. Sepals 5, equal. 
Petals 5. Stamens 5-10... Styles3,separate. Capsule elongated-conic, 1-celled, much longer 
than the sepals; seeds minutely striate and pitted. [Greek, a broom.] 
A monotypic genus of eastern North America. 
1. Sarothra gentianoides L. Orange-grass. 
Pine-weed. (Fig. 2463.) 
Sarothra gentianotdes I,. Sp. Pl. 272. 1753- 
Hypericum nudicaule Walt. Fl. Car. 190. 1788. 
Hypericum Sarothra Michx. Fl. Bor. Am, 2:79. 1803. 
Annual, erect, fastigiately branched, 4/-20’ high. 
Branches mainly opposite, filiform, erect, wiry; leaves 
minute, subulate, about 1/’ long, appressed; flowers 
nearly sessile, 1//-114’ long, open in sunlight; sepals 
linear, about equalling the petals and much shorter than 
the conic-cylindric acute purple pod; seeds very small. 
In sandy soil, Maine to Florida, west to Minnesota, Missouri 
and Texas. June-Oct. Called also Ground Pine and Nit-weed. 
4. TRIADENUM Raf. Med. Rep. (II.) 5: 352. 1808. 
({ELopEA Pursh, Fl. Am. Sept. 360. 1814. Not Michx. 1803, nor Z/odes Adans. 1763.] 
Perennial marsh herbs, with opposite entire oblong oval or ovate leaves, and pink or 
greenish purple flowers in terminal cymes, or also axillary. Calyx of 5 equal persistent 
sepals. Petals 5, not contorted. Stamens 9, or sometimes more, in 3 sets, the sets alternat- 
ing with 3 large hypogynous glands. Ovary 3-celled; styles 3. Capsule oblong-conic, much 
longer than the sepals. [Greek, three glands. ] 
Two species, natives of eastern North America. 
Leaves sessile; flower-clusters peduncled. 1. 7. Virginicum. 
Leaves short-petioled; flower-clusters nearly sessile. 2. T. pettolaitum. 
1. Triadenum Virginicum (J,.) Raf. 
Marsh St. John’s-wort. (Fig. 2464.) 
Hypericum Virginicum J. Sp. Pl. Ed. 2, 1104. 1763. 
Hypericum campanulatum Walt. Fl. Car. 191. 1788. 
Elodea campanuilata Pursh, Fl. Am. Sept. 379. 1814. 
Elodea Virginica Nutt. Gen. 2:17. 1818. 
Triadenum Virginicum Raf. Fl. Tell. 3:79. 1836. 
Perennial, erect or ascending, nearly simple, 1°- 
144° high. Leaves sessile or cordate-clasping, ovate 
or oblong, 1/-214’ long, 9’/-12’’ wide, very obtuse, 
sometimes emarginate, glaucous beneath, black- 
dotted; flowers 6’/-8’’ broad, in axillary and ter- 
minal peduncled leafy clusters; sepals ovate or lan- 
ceolate, acute, shorter than the straight petals; sta- 
mens 9 or more, united in 3 sets; styles 3, distinct; 
capsule oblong, 4’/-5’’ long, acute, red-purple. 
In swamps, Labrador and Nova Scotia to Florida, west 
to Manitoba, Nebraska and Louisiana. Also in north- 
eastern Asia. Ascends to 2600 ft. in the Catskills. 
July-Sept. 
