Obdkb 18.— ST. JOHNS WORTS. 169 



HYPER'ICUM. St. Johnawort. 



Sepals 5, connected at base, nearly equal, leaf-like. Petals 6, oblique. 

 Stamens many (sometimes few and distinct), miited into 3-5 parcels with 

 no glands between tbem. Styles 3-5, either distinct or united at base. 

 Capsule 1-oelled, or 3-5-celled.— Herbs or shrubs, with branching stems, 

 opposite, entire leaves, and yellow flowers. (Figs. 210, 211, 400-402.) 



§ Stamens 25. to 100, more or less united into sets a 



§ Stamens 5 to 15, not at all united g 



a Carpels (pistils) and styles 5 or more. Capsule 5-oelled Nos. 1, 2 



a Carpels 8. Capsule 8-celled (the partitions meeting) b 



a Carpels 3. Capsule 1-celled (the partitions not quite meeting) u 



b Shrubby. Petals not dotted. Leaves lanceolate or oblanceolate . . . .8-5 



b Shrubby. Petals not dotted. Leaves linear 6, 7 



b Herbaceous. Petals sprinkled with black dots. . . .8-10 



c Shrubs. Styles united into 1 d 



■o Half-shrubby. Styles united into 1 » , 



Herbaceous. Styles distinct, at least at the top. . . .f 



d Flowers solitary or in 3's, axillary. Stems 2-edged 11, 12 



d Flowers clustered in a compound, terminal cyme. ...13, 14 

 e Flowers in a leafless, stalked cyme. Leaves obtuse .... 15, 16 



e Flowers in a.leafy (few-leaved) cyme. Leaves acute 17, 18 



f Stem or branches 4-cornered or square. ...19, 20 



f Stem and branches terete, not angular 21, 22 



g Flowers in oorymbous cymes 28, 24 



g Flowers racemed on the slender branches 25, 26 



1 ■ H. pyramida'tum. Giant S. Herb 8-4f., flowers 2' broad. Leaves lance-oblong. 



2 H. Ealmia'nnm. KaVnOs S. Shrub l-2f., flowers 1' broad. Leaves lance-linear. 



3 H. Buokle'yi. BnckUifs S. Leaves obovate. Flowers terminal, solitary. S. 



4 H. prolif'icum. Prolific & Lvs. lance-oblong. Cymes compound. W, 



5 H. galeoi'des. Bedstraw fS. Lvs. lance-linear. Clusters axillary. S. 



6 H. rosmarinifo'lium. Bosemary S. Lvs. petioled, shorter than internodes. S. 



7 H. fascicula'tum. Clustered S. Lvs. sessile, longer than the internodes. S. 



8 H. perfora'tum. Punctured S. Stem 2-edged. Lvs. small, light^dotted, c. 



9 H. corymbo'sum. Corymhed S. Stem terete. Lvs. large, black-dotted, c. 



10 H. maovila'tum. Spotted S. St. terete. All over black-dotted. Sty. long. 



11 H. au'reum. Golden S. Lvs. thick, obtuse, sessile. Fls. large (li')- Stam. 500 1 S. 



12 H. ambig'uum. Z>uS»ou« (S. Lvs. thin, acute, sessile. Fls. 8" broad. Pet. toothed. S. 



13 H. myrtifo'lium. Myrtle S. Branches terete. Lvs. clasping. Cyme leafy. S. 



14 H. cistifo'lium. Rochrose S. Branches 2-edged. Lvs. sessile. Cyme leafless. S. 



15 H. nudjflo'rtim. Nakei-fiomered S. Lvs. lance-ovate. Pod ovoid-conic. M. S. 



16 H. sph»rocar'pon. Bound-fruited S. Lvs. linear-oblong. Pod globular^ W. 



8 



