40 COMMON .CANADIAN WILD PLANTS. 



~ 2. T. Europse'a, L. The European Linden is planted as 

 a shade tree in some places. It is easily distinguished by 

 the absence of petal-like scales among the stamens, which are 

 present in the native Linden. 



Order XX. LINA'CEiE. (Flax Family.) 



Herbs with entii-e exstipulate leaves (but sometimes with 

 glands in place of stipules), and regular hypogynous flowers. 

 Sepals, petals, stamens, and styles, ,5 each. ■ Filaments 

 united at the base. Pod 10-celled, 10-seeded. Our only 

 genus is 



UNl'M, L. Flax. 



1. L. Virginia'num, L. (Virginia F.) Flowers yellow, 

 , small (J of an inch long), scattered. Stem erect, it and the 



spreading branches terete. _ Leaves lanceolate and acute, 

 th6 lower obtuse and opposite; No glands, styles distinct. — 

 Dry soil. 



2. L. stria' turn, Walt., has the branches wing-angled, 

 broader leaves and more crowded flowers than No. 1. The 

 whole plant is stouter. — Shores of the Great Lakes. _ 



3. L. Sulca'tum, Eiddell, has yellow flowers twice as large 

 as the preceding, wing-angled branches, and a pair of dark 

 glands in 'place of stipules. Sepals strongly 3-nerved, with 

 rough bristly margins. Styles united to the middle. — Dry 

 soil, rare. 



4. L. rig'idum, Pursh. Glaucous. Flowers yellow, large. 

 •Sepals* lanceolate, glandular-serrulate. Branches rigid, 

 angled. Stipular glands usually present. Styles united. — 

 N. W. 



5. L. peren'ne, L., var. Lewisii, Eat. and Wright. 

 Flowers JZae, on long peduncles. Perennial, glabrous -and 

 glaucous, leaves linear, acute. Styles distinct. Pod ovate. 

 — N. W. 



6. L. UsitatiS'Simum, L. (Common F.) Annual. Flowers 

 Mue, the sepals ciliate. Leaves alternate, linear-lanceolate, 

 acute, S-veined. — Cultivated grounds. 



