PBIMUiACE^. 147 



S. LYSIAIACH'f A, Toiirii. Loosestrife. 



1. L. thyPSiflo'ra, L. (Tufted Loosestrife.) Flowers 

 in spike-like clusters from the axils of a few of the upper 

 leaves. Petals lance-liijear, purplish-dotted, as many minute 

 teeth between them. • Leaves scale-like below, the upper 

 lanceolate, opposite, sessile, dark-dotted. — Wet swamps. 



2. L. strinta, Ait. Flowers on slender pedicels in a long 

 terminal raceme. Petals lance-oblong, streaked with dark 

 lines. Leaves opposite, lanceolate, acute at each end, sessile, 

 dark-dotted. — Low grounds. 



0. L. quadFifo'lia, L. Flowers on long slender peduncles 

 from the axils of the upper leaves. Petals streaked. Leaves 

 in whorls of 4 or 5, ovate-lanceolate, dark-dotted. — Sandy 

 soil." 



4. L. Cilia'ta, L. (_Steironema ciliatum, Eaf.^ in Maeoun's 

 Catalogue.) Flowers nodding on slender peduncles from the 

 upper axils. Petals not streaked or dotted. Leaves opposite, 

 not dotted, ovate-lanceolate, pointed, cordate at the base, on 

 fong fringed petioles. — Low grounds. 



5. L. longifo'lia] Wait, {Steironema longifolium, Gray, 

 in Maooun's Catalogue.) Petals not streaked or dotted. 

 Stem-leaves sessile, narrowly linear, 2-4 inches long, the 

 margins sometimes revolute. Stem 4-angled. — Moist soil, 

 western Ontario. 



6. L. lanceola'ta, Walt. {Steironema lanceolatum. Gray.) 

 Stem erect, 1-2 feet high. Leaves lanceolate to oblong and 

 linear, narrowed into a short margined petiole, or the lowest 

 short and broad on long petioles, not dotted. Petals not 

 streaked or dotted. — S. W. Ontario. 



7. L. nummula'Fia, L., (Monet-wort), has escaped from 

 g.nrdens in a few, places. Stem trailing and creeping, 

 smooth. Leaves roundish, small, opposite. Peduncles 

 axillary, 1-flowered.^Damp places. 



6. GLADX, Tourn. 

 G. maFit'ima, L. (Sea-Milkwobt.) A fleshy herb, with 

 usually opposite, oblong, entire, sessile leaves. Flowers 



