STYBACACEAE. 105 



1. SYMPLOCOS Jacq. Leaves often persistent: blades thick. Inflo- 

 rescence congested or open. Calyx often persistent. Corolla deciduous. 

 Stamens conspicuous. Style columnar. Fruits often crowned \vith the calyx. 



1. S. tinctoria (L.) L'Her. Evergreen shrub or small tree: leaf -blades ellip- 

 tic, oblong, or oblong-oblanceolate, 4-15 cm. long, undulate or shallowly 

 toothed, tomentose beneath: flowers densely clustered: calyx 2-2.5 mm. long; 

 lobes shorter than the tube: corolla yellowish; lobes obovate or obovate- 

 spatulate, 6-8 mm. long: stamens exserted: drupe 10-14 mm. long. SWEET- 

 LEAF. HORSE-SUGAR. 



Sandy or rich woods, n. Fla. and the adj. pen. (Cont.) Spr. 



FAMILY 4. STYRACACEAE. STORAX FAMILY. 



Shrubs or trees, the hairs when present branched or scurfy. Leaves 

 alternate: blades entire or shallowly toothed. Flowers perfect, in racemes, 

 panicles, cymes, or clusters. Calyx of 5, or 4-8, partially united sepals. 

 Corolla of 5, or 4-8, distinct or partially united petals. Androecium of 

 8-16 stamens in one series, partially adnate to the corolla. Gynoecium of 

 2-5 united carpels, the ovary sometimes inferior. Fruit drupaceous or 

 capsular. 



Ovary inferior : fruits nut-like, elongate, winged. 1. HALBSIA. 



Ovary superior : fruits drupaceous, subglobose. 2. STYRAX. 



1. HALESIA Ellis. Shrubs or trees. Leaves with thinnish blades^ 

 deciduous. Inflorescence not leafy-bracted. Calyx with relatively large lobec. 

 Corolla with nearly erect lobes or petals. Anthers oblong. Ovules 4 in each 

 cavity, 1 pair ascending, 1 pair drooping. [Mohrodendron Britton.] Spr. 



Corolla-lobes longer than the tube : fruits 2-winged, the stipe wholly included in 



the wings. 



Corolla 2-3 cm. long : fruits over 3 cm. long. 1. H. diptera. 



Corolla less than 1.5 cm. long: fruits less than 3 cm. long. 2. H. parviflora. 

 Corolla-lobes shorter than the tube : fruits 4-winged, the base of 



the stipe free. 3. H. Carolina. 



1. H. diptera Ellis. Shrub, or tree becoming 15 m. tall, the twigs copiously 

 pubescent: leaf- blades oval, oblong, or obovate, 4-15 cm. long, coarsely toothed: 

 calyx 6-7 mm. long, densely pubescent: corolla 20-30 mm. long; lobes pubes- 

 cent without: filaments and style pubescent: fruits 2-winged. SNOWDROP-TREE. 



Woods and stream-banks, n. Fla. (Cont.) 



2. H. parviflora Miehx. Shrub similar to the preceding and succeeding 

 species, but smaller in all its parts, the young leaves, pedicels and calyx densely 

 pubescent: corolla white, 8-12 mm. long: drupe less than 3 cm. long, the two 

 wings, including the stipe. 



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



3. H. Carolina L. Shrub, or tree becoming 25 m. tall, the twigs sparingly 

 pubescent or glabrous: leaf-blades oblong, oval, or obovate, 5-17 cm. long, 

 finely serrate: calyx 5-6 mm. long, glabrous: corolla 20-25 mm. long; lobes 

 glabrous without: filaments and style glabrous: fruits 4-winged. SILVER- 

 BELL-TREE. 



Woods, n. Fla. and adj. pen. (Cont.) 



2. STYBAX [Tourn.] L. Shrubs or trees. Leaves with thickish blades but 

 deciduous. Inflorescence leafy-bracted. Calyx with minute lobes. Corolla 

 with recurved petals or lobes. Anthers linear. Ovules several, ascending. Spr. 

 STORAX. 



