STYRACACE.E. (STORAX FAMILY.) 271 



Tribe IT. STMPLOCINEjE. Calyx 6-cleft : stamens indefinite: ovules pendulous: 

 pubescence simple. 

 8. SV.Ml'LOCOS. Flowers in sessile clusters. Fruit baccate. 



1. STYRAX, Tourn. Storax. 



Calyx 5 - 8-toothed, free, or partly adherent to the 3-celled ovary. Corolla 

 deeply 5-parted, with spreading or reflexed lobes, hypogynous or pcrigynous. 

 Stamens 10, free or adnate to the tube of the corolla. Style filiform. Ovary 

 completely or partly 3-celled. Capsule globose, 3-valved, 1-seeded. — Shrubs, 

 with a downy or scurfy stellate pubescence. Leaves entire or toothed. Flowers 

 white, in leafy racemes. 



1. S. pulverulentum, Michx. Leaves small (1'- 1£' long), elliptical 

 or obovate, entire or toothed, the lower surface and branches scurfy; racemes 

 lateral, 3 - 7-flowcred, often by pairs, hoary; calyx-teeth subulate. — Pine- 

 barren swamps, Florida and Georgia. April and May. — Shrub 2°- 12° high. 

 Racemes 1'- 2' long. Flowers fragrant. 



2. S. grandifolium, Ait. Leaves large (2' -4' long), oval or obovate, 

 acute, mostly entire ; the lower surface, like the branches and many-flowered 

 racemes, hoary ; calyx furrowed, with triangular acute teeth. — Rich woods, 

 Florida to North Carolina, and westward. April and May. — Shrub 4° - 6° 

 high. Racemes 3' - 5' long. 



3. S. Americanum, Lam. Leaves thin, obovate, or oblong-obovate, 

 acute, smooth ; racemes scurfy, not hoary, 4 - 6-flowered, terminal ; calyx-teeth 

 short, subulate. (S. glabrum and S. lseve, Ell.) — Banks of streams, in the 

 middle and upper districts, Mississippi to North Carolina. May. — Shrub 

 4° -8° high. Leaves l'-2' long. Racemes 1' long. 



2. HALESIA, Ellis. Snowdrop-Tree. 



Calyx obconical, slightly 4 - 8-toothed, adnate to the 3-4-celled ovary. 

 Corolla inserted on the calyx, 4-lobed or 4-petalous. Stamens 8 - 16, separate 

 or united below, free from the corolla : anthers linear. Ovules 4 in each cell, 

 2 of them erect, and 2 pendulous. Drupe dry, 2-4-winged, 1-3-seeded. 

 Seeds cylindrical. — Shrubs or small trees. Leaves ample. Flowers in short 

 lateral racemes, appearing with the leaves, white, drooping. 



* Ovary 3-celled: corolla 4-petalous: stamens mostly 8, distinct: drupe 2-winged. 



1. H. diptera, L. Leaves oval, coarsely serrate, pubescent, 4'- 5' long; 

 racemes 2 - 4-flowered, the flowers on long pedicels; corolla 1' lon^ ; anthers 

 spreading; drupe compressed, 1' long. — Rich woods, Florida and Georgia. 

 March and April. 



* * Ovary 4-celled : corolla 4-lobed: stamens mostly 12, united below the middle: 



drupe 4-winged. 



2. H. tetraptera, L. Leaves oblong, finely serrate, at length smoothish, 

 2' -4' long; flowers 2-4 in a cluster, 8"- 10" long; anthers erect. — River- 

 banks, Florida to North Carolina, and westward. March and April. 



