POPULAR FLORA. 
127 
8. Lance-leaved Violet. Leaves lance-shaped, erect, smooth; petals not bearded. V. lanceolata. 
•w- ++ ++ Flowers light yellow, small. 
9. Round-leaved V. Leaves round ovate and heart-shaped, spreading flat on the ground; side- 
petals bearded and brown-streaked inside. Cold woods, N. V. rotundifolia. 
* * Leafy-stemmed species. 
-t— Wild species, perennial, with heart-shaped leaves, blossoming nearly all summer. 
10. Long-spurred V. Spur £' long, considerably longer than the pale bluish corolla. V. rostrata. 
11. Muhlenberg’s V. Low, spreading by runners; spur stout, not more than half the length of 
the pale violet corolla. Wet woods. V. Muhlenbergii. 
12. Pale V. Spur much shorter than the cream-colored corolla; lower petal streaked. V. striata. 
13. Canada V. Tall; petals white above, violet-tinged beneath; spur very short. V. Canadensis. 
14. Downy V. Tall, leafless below, downy; corolla yellow, spur very short. V.jpubescens. 
1 - h— Cultivated or run wild; root annual or biennial. 
15. Heart’s-ease or Pansy V. Low; upper leaves oval, the lower heart-shaped; stipules large 
and leaf-like, pinnatifid; corolla yellow-whitish, violet-blue, and purple, varying or mixed, large 
and showy in the cultivated Pansy, becoming small when run wild. V. tricolor. 
13. CISTUS FAMILY. Order CISTACE^E. 
This small family consists of low shrubby plants or perennial herbs, in Europe with a 
showy corolla which opens only once, in sunshine, 
the petals falling off at sunset. Here it contains 
only a few less handsome, or homely, weed-like 
plants. They may be known by the followiug 
marks. — Leaves some of them alternate. Calyx 
remaining after blossoming, of 5 sepals, three of 
them large and two smaller, often very small, the 
latter entirely outside in the bud and looking like 
bracts. Petals 5 or 3, all alike, overlapping each 
other in the bud, each with one edge covering the 
one before it, but covered by that behind it. Sta¬ 
mens from 3 to 20 or more, all separate, borne on 
the receptacle. Pistil one, making a one-celled 
pod, with the seeds borne on three lines down the 
walls, or on projections from them, that is, with 
3 parietal placentas. 
Petals 5, yellow, falling after the flower has opened for one day only. 
Style none. Petals crumpled in the bud, ( Helidnthemum ) Frostweed. 
Style slender. Little shrubs with minute leaves on sandy shores, ( Hudsonia) Hudsonia. 
Petals 3, purplish, persistent. Flowers very small. ( L&chea ) Pinweed. 
294 295 
294. Flower, &c. of Frostweed. 295. Its calyx and 
pistil. 296. its ovary cut across and magnified. 
