Order 18.-ST. JOHNSWORTS. 169 



HYPER'ICUM. St. Johnswort. 



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

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

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

 Capside 1 -celled, 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-cellcd Nos. 1, 2 



a Carpels 3. Capsule 3-celled (the partitions meeting) b 



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



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 



c Half-shrubby. Styles united into 1 e 



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



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



d Flowers clustered in a con^ipound, terminal cyme 13, 14 



e Flowers in a leafless, stalked c}"me. Loaves 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 corymbous cymes 23, 2-i 



g Flowers racemed on the slender branches 25, 20 



1 H. pyramida'tum. Giant S. Herb 3-4f , flowers 2'' broad. Leaves lance-oblong. 



2 H. Kalmia'num. KalrrCi S. Shrub l-2f , flowers 1' broad. Leaves lance-linear. 



3 H. Buckle 'yi. BttckUy's S. Leaves obovate. Flowers terminal, solitary. iS. 



4 H. prolif 'icum. Prolijic S. Lvs. lance-oblong. Cymes compound. W, 



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



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



7 H. fascicula'tum. Clustered S. Lvs. sessile, longer than t lie internodes. S. 



8 H. perfora'tum. Punctured S. Stem 2-edged. Lvs. i<mall, light-dotted, c. 



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



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



11 H. au'reum. Gulden S. Lvs. thick, obtuse, sessile. FIs. large (U^). Stam. 500 ! S. 



12 H. ambig'uum. Dubious S. Lvs. thin, acute, sessile. Fls. S^' broad. Pet. toothed. S. 



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



14 H. cistifo'Iium. Rockrose S. Branches 2-edged. Lvs. sessile. Cyme If aH ess. S. 



15 H. nudiflo'ram. Kaked-Jlowered S. Lvs. lance-ovate. Pod ovoid-conic. M.S. 



16 H. spha&rocar'pon. Ronnd-frvifrd SI. liVS. lincar-ol.lojig. Pod globular. W. 



8 



