168 



THE FLORA. 



10 V. cuoulla'ta. Hood-leaved- V: Leaves reniform-cordate, base lobes involute, com. 

 IIV. villo'sa. Woolly V. Leaves round-ovate, cordate, obtuse, flat, downy. M.S. 

 12 7. sagitta'ta. Arrow-lvd. V. Lvs. lance-oblong, some sagittate or cut- toothed at base. 

 18 V. hasta'ta. IIalberd-leai)ed V. Smooth. Lvs. hastate. Stip. ovate, minute. S. 



14 V. tripar'tita. Three-cleft V. H^ry. Lvs. deeply 3-parted. Stip. lanceolate. S. 



15 V. pubes'cens. Downy V. Downy. Lvs. broad-cordate. Stip. ovate, large, e. 

 16 V. Canaden'sis. Canada V. Plant If. high. Leaves cordate, pointed, smooth. 



17 V. stria'ta. Cream-colored V. Spur J the length of the corolla. Stip. large, obloiij. 



18 V. MuMenber'gii. MuJilenierg's V. Spur i the length of corolla. Stip. lanceolate. 



19 V. rostra'ta. Long-spurred V. Spur longer than corolla. Stipules lanceolate. 



20 V. trio'olor. Pansy. Heartsease, Stipules as large as the leaves. Fls. three-colored. \ 



21 V. grandiilo'ra. Oreat-fiowered V. Stip. much smaller than the leaves. Purple, t 

 22 V. odora'ta. Sweei MiglieA V. Stolons creeping. ' Lvs. cordate. Fragrant, t . 



Order XVIII. HYPERICACE^. St. Johnsworjs. 



Herbs or shrubs -witli opposite, entire 

 dotted leaves, and no stipules ; 



flowers mostly yellow, in cymes ; 



sepals unequal, 4^5, dotted ; 



petals 4-5, twisted in the bud, dotted, 

 and with the veins oblique ; 



stamens hypogynous, in 3 or more par- 

 cels; 



ovary superior ; style 1 ; 



fruit a capsule or berry, many-seeded. 



Analysis of the Genera. 



Petals and sepals 5 2 



Petals and sepals 4. Flowers yellow. 



St. Peterswbri. As''cyeum. 

 2 Fls. yellow. St. Johnswort. Hypee'iohm. 1 

 2 Flowers purplish. Elode'a. 



Fig. 400. Hypericum perforatum (Common St. 

 Johnswort): stem, leaves, and flowers. Fig. 401. 

 The stamens in 8 sets surrounding the ovary with 8 

 Btylcs. Flg.^^% Cross-section of the ovary. 



