HYPEEICACEAE. 7 



Styles 3-4 : inner sepals slightly smaller than the outer. 



Leaf-blades merely sessile : outer sepals fully as broad as 



long. 4. A. cuneifolium. 



Leaf-blades clasping : outer sepals longer than broad. 



Outer sepals broader than the leaf-blades : inner sepals 



shorter than the outer. 5. A. stans. 



Outer sepals narrower than the leaf -blades : inner sepals 



as long as the outer. 6. A. tetrapetalum. 



1. A. pumilum Michx. Shrub depressed: leaf -blades oval, obovate, or linear- 

 oblong, 3-9 mm. long: outer sepals ovate to suborbicular, 6-10 mm. long, the 

 inner obsolete or nearly so : petals yellow, obovate : .capsules about 5 mm. long. 



Pinelands, n. Fla. and the adj. pen. (Ga.) 



2. A. hypericoid.es L. Shrub diffuse: leaf -blades linear, often narrowly so, 

 5-15 mm. long: outer sepals cuneate-obovate to oblong or oblong-lanceolate, 

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



Dry woods and hammocks, nearly throughout Fla., except the F. Keys. (Cont.,W. I.) 



3. A. linifolium Spach. Shrub mostly erect: leaf -blades linear-spatulate to 

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

 oblong-ovate, 6-9 mm. long, the inner petaloid: petals bright-yellow: capsules 

 5-8 mm. long. 



Pinelands, pen. Fla. (Cont., W. I.) 



4. A. cuneifolium Chapm. Shrub 1-2 dm. tall: leaf -blades cuneate or obovate, 

 5-20 mm. long: inner sepals oblong or nearly so: capsules broadly ovoid. 



Low pinelands, n. Fla. (Cont.) 



5. A. stans Michx. Shrub 3-9 dm. tall: leaf -blades oblong-elliptic, varying to 

 obovate: inner sepals lanceolate: capsules narrowly ovoid. . 



Pinelands, n. Fla. and the adj. pen. (Cont.) 



6. A. tetrapetalum (Lam.) Vail. Shrub 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. 



Low pinelands and swamps, nearly throughout Fla., except the F. Keys. (Ga.) 



2. CROOKEA Small. Shrubs resembling species of Ascyrum. Sepals 4, 

 nearly equal. Stamens numerous: filaments distinct. Styles relatively long. 

 Capsule not included. 



1. C. microsepala (T. & G.) Small. Shrub less than 1 m. tall: leaves numerous; 

 blades cuneate to linear-cuneate, or narrowly oblong, 6-14 mm. long: petals 

 yellow, the larger obovate, the smaller oblong: capsules oblong, 7-8 mm. long. 

 Sandy woods, n. Fla. and the upper pen. (Ga.) 



3. HYPERICUM [Tourn.] L. Herbs or shrubs. Sepals 5, essentially 

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

 ST. JOHN 'S-WORT. 



Capsule 1-celled or incompletely 3-celled. 



Capsule with parietal placentae, these not intruded. 1. H. opacum. 



Capsule with 3 intruded placentae, incompletely 3-celled. 

 Sepals small, not foliaceous. 



Leaves not in conspicuous axillary clusters : blades 



relatively broad. 



Sepals less than % as long as the petals : cap- 

 sules 6-7 mm. long. 2. H. nudiflorum. 

 Sepals over y 2 as long as the petals : capsules 



12-13 mm. long. 3. H. apocynifolium. 



Leaves in conspicuous axillary clusters : blades 



narrow. 



Leaves of the axillary clusters smaller than the 

 subtending pair ; blades neither subulate 

 nor fleshy. 



