This section is from the book "An Illustrated Flora Of The Northern United States, Canada And The British Possessions Vol2", by Nathaniel Lord Britton, Addison Brown. Also available from Amazon: An Illustrated Flora of the Northern United States, Canada and the British Possessions. 3 Volume Set..
Fig. 3293
L. ciliata var. tonsa Wood, Class-book, 505. 1863. Steironema intermedium Kearney, Bull. Torr.
Club 21: 263. 1894. S. tonsum Bicknell; Britt. & Br. I11. Fl. 2: 590.
1897.
Stem erect, l°-2° high, slender, obtusely 4-angled, glabrous below, minutely glandular-puberulent above. Leaves 2-3' long, 10"-20" wide, ovate to ovate-lanceolate, acute at the apex, obtuse or subcordate at the base, minutely ciliolate, otherwise glabrous, the upper much smaller; petioles slender, glabrous, or ciliate only at the base; panicle open, leafy; pedicels slender, 2-6 times as long as the flowers; calyx-segments lanceolate, very acute; corolla 9"-10" broad, its segments cuspidate; capsule shorter than calyx.
On dry rocks, Virginia to Kentucky, Tennessee and Alabama. June-July.
Fig. 3294
L. radicans Hook. Comp. Bot. Mag. 1: 177. 1836.
S. radicans A. Gray, Proc. Am. Acad. 12: 63. 1876.
Stem weak, at first erect, soon decumbent or reclined and often rooting at the joints, very slender, glabrous, much branched, 1°-3° long Leaves membranous, pinnately veined, lanceolate to ovate-lanceolate, acute or acuminate at the apex, rounded or narrowed, but not cordate at the base, 1'-4' long, 1/4'-1' wide; margins not ciliolate; petioles naked or very sparingly ciliolate, 1/4'-1 1/4' long; peduncles filiform, ¥-2' long; calyx-segments ovate or lanceolate, acuminate, about equalling the erose-denticulate corolla-segments; flowers 3"-4" broad; capsule about one-half as long as the calyx.
In swamps, Virginia and West Virginia to Arkansas and Texas. June-Aug.
Fig. 3295
Lysimachia lanceolata Walt. Fl. Car. 92. 1788. L. hybrida Michx. Fl. Bor. Am. 1: 126. 1803. Steironema lanceolatum A. Gray, Proc. Am. Acad. 12: 63. 1876.
Stem erect, slender, glabrous, simple or branched, 6'-3o high. Leaves lanceolate, linear or oblong-lanceolate, petioled or nearly sessile, membranous, pinnately veined, acute or acuminate at the apex, usually narrowed at the base, 1'-5' long, 2"-10" wide, the margins naked or cihate; lower leaves shorter, often oblong or nearly orbicular; petioles 2"-8" long, naked or ciliate; peduncles slender or filiform, 1/2'-1 1/2' long; calyx-segments lanceolate, acute or acuminate, nearly as long as or exceeding the erose and cuspidate-pointed corolla-segments; flowers 5"-9" broad; capsule nearly as long as the calyx-segments.
In moist soil, Maine to North Dakota. south to Florida, Louisiana and Arizona. June-Aug. Consists, apparently, of several races, regarded by some authors as species, which differ in width of leaves, length of petioles, length and shape of staminodes.
Fig. 3296
L. quadriflora Sims, Bot. Mag. pl. 660. 1803. L. longifolia Pursh, Fl. Am. Sept. 135. 1814. Steironema longifolium A. Gray, Proc. Am. Acad.
12: 63. 1876. Steironema quadriflorum Hitchc. Trans. St. Louis Acad. 5: 506. 1891.
Stem erect, strict, glabrous, simple or little branched, 4-sided, 6'-3° high. Stem-leaves all but the lowest sessile or very nearly so, firm, narrowly linear, 1-nerved, the lateral veins obscure, acute or acuminate at both ends, 1'-4' long, 1"-2 1/2" wide, usually with smaller ones fascicled in the axils, glabrous, the margins slightly revolute; basal leaves oblong or linear-oblong, shorter, slender-petioled, acute or obtuse; peduncles filiform, 1'-1 1/2' long; calyx-segments lanceolate, acute, shorter than the cuspidate and slightly erose corolla-segments; flowers 8"-12" broad, often somewhat clustered in 4's at the ends of the branches.
Along streams and lakes, Virginia to western New York, Ontario, Kentucky, Missouri, Iowa and Manitoba. June-July.
 
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