PRIMULACE^. 147 



S. I.T8I1IIACH'IA, ToDrn. Loosestrife. 



1. L. thyrsiflo'ra, L. (Titfted Loosestrife.) Flowers 

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

 leaves. Petals lanoe-linear, purplish-dotted, as many minute 

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

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



2. L. Strieta, 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. 



3. L. quadrifo'lia, L. Flonvers on long slender peduncles 

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

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

 soil. 



4. L. Cilia'ta, L. {Steironema ciliatum, Eaf ., in Macouii's 

 Catalogue.) Flowers nodding on slender peduncles from the 

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

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

 long fringed petioles. — Low grounds. 



5. L. longifo'lia, Walt. {Steironema longifolium. Gray, 

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

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

 margins sometimes revolute. Stem 4rangled. — Moist soil, 

 western Ontario. 



6. L. laneeola'ta, Walt. (^Steironemalanceolatum,GTa,y.) 

 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'ria, L., (Moitet-wobt), has escaped from 

 gardens in a few places. Stem trailing and creeping, 

 smooth. Leaves roundish, small, opposite. Peduncles 

 axillary, l-flowered. — Damp places. 



6. eLAITX, Toam. 

 G. marit'ima, L. (Sea-Milkwoet.) A fleshy herb, with 

 usually opposite, oblong, entire, sessile leaves. Flowers 



