TUKNEEACEAE. 123 



Styles distinct or partially united or coherent until maturity, if united to the 

 stigmas, then grooved. 



Stigmas not brush-like : endosperm little or none. Fam. 1. HYPERICACEAE. 



Stigmas brush-like : endosperm copious. Fam. 2. TURXERACEAE. 



Styles wholly and permanently united. Fam. 3. CISTACEAE. 



FAMILY 1. HYPERICACEAE. ST. JOHN'S-WOBT FAMILY. 



Herbs or shrubs. Leaves opposite: blades mostly punctate, entire or 

 nearly so, sometimes scale-like. Flowers perfect. Calyx of 4 or 5 her- 

 baceous equal or unequal sepals. Corolla of 4 or 5, yellow or pink, petals. 

 Androecium of few or many stamens, sometimes grouped, the groups 

 sometimes alternating with glands. Gynoecium of 3-7 united carpels. 

 Fruit a capsule. 



Sepals 4, those of each pair very unequal In size and shape. 1. ASCYRUM. 



Sepals 5, equal or nearly so. 2. HYPERICCM. 



1. ASCYRUM L. Shrubs. Sepals 4, very unequal. Stamens not in groups. 

 Styles relatively short. Capsule included in the calyx. ST. PETER 'S-WORT. 

 ST. ANDREW 'S-CROSS. 



Inner sepals very small, petal-like or obsolete : styles 2. 



Outer sepals ovate at maturity : capsule included. 1. A. hypericoidea. 



Outer sepals oblong or elliptic at maturity : capsule exserted 



at the tip. 2. A. linifoUum. 



Inner sepals slightly smaller than the outer : styles 3 or 4. 3. A. tetrapetalum. 



1. A. hypericoides L. Plants diffuse: leaf -blades linear, often narrowly so, 

 5-15 mm. long: outer sepals ovate, at least at maturity, erect, obtuse, 

 7-9 mm. long, the inner petaloid: petals pale-yellow; capsules 7-8 mm. long. 

 Hammocks. (Cuba, Ant.) 



2. A. linifolium Spach. Plants mostly erect: leaf -blades linear-spatulate to 

 oblanceolate, oblong, or obovate-oblong, 1-3.5 cm. long: outer sepals oblong 

 or elliptic, 6-9 mm. long, the inner petaloid: petals bright-yellow: capsules 

 5-8 mm. long. Pinelands. (Her., Bah., Cuba.) 



3. A. tetrapetalum (Lam.) Vail. Plants 2-9 dm. tall: leaf -blades ovate to 

 oval: outer sepals resembling the leaf-blades, the inner oblong to lanceolate: 

 capsules about i as long as the sepals. Pinelands and Everglades. 



2. HYPERICTTM [Tourn.] L. Herbs or shrubs. Sepals 5, essentially 

 equal. Stamens mostly in groups. Style relatively long. Capsule not in- 

 cluded. ST. JOHN 'S-WORT. 



Buds conic: sepals linear to oblong-linear: capsules narrowly conic, gradually 

 pointed. 1. H. aspalathoides. 



Buds ovoid : sepals orbicular, oblong-ovate or obovate : capsules 



ovoid, abruptly pointed. 2. H. opacum. 



1. H. aspalathoides Willd. Plants 2-8 dm. tall: leaves very numerous, with 

 clusters of small ones borne in the axils of the large ones; blades linear- 

 subulate or linear-filiform, 5-8 mm. long, or shorter in the clusters: petals 6-7 

 mm. long. Pinelands. F. K. (Cuba.) 



2. H. opacum T. & G. Plants 3-12 dm. tall: leaves few; blades oblong to 

 oblong-lanceolate, or sometimes linear-oblong, 1-3 cm. long: petals 3-5 mm. 

 long. Everglades. 



FAMILY 2. TURNERACEAE. TUBNERA FAMILY. 



Herbs or shrubs. Leaves alternate: blades entire, toothed, or pin- 

 natifid, pinnately veined. Flowers mostly perfect. Calyx of 5 imbricate 



