334 STYRACACKJK. (STOKAX FAMILY.) 



2. Halesia. Calyx coherent with the whole surface of the 2- 4-celled ovary, which is 



2 - 4-winged and 2 - 4-celled in fruit. Corolla 4-lobed. 



Tribe II. SYMPIiOCINE^E. Calyx 5-cleft, imbricate. Stamens in several series; 

 anthers short, innate. Embryo terete. Flowers yellow. Pubescence simple. 



3. Symplocos. Calyx coherent. Petals 5, united merely at the base. 



1. STYRAX, Touru. STORAX. 



Calvx truncate, somewhat 5-toothecl, the base (in our species) coherent with 

 the base of the 3-celled many-ovuled ovary. Corolla 5-parted (rarely 4-8- 

 parted), large , the lobes mostly soft-downy. Stamens twice as many as the 

 lobes of the corolla ; filaments flat, united at the base into a short tube ; anthers 

 liuear, aduate. Fruit globular, its base surrounded by the persistent calyx, 

 1-celled, mostly 1 -seeded, dry, often 3-valved. Seed globular, erect, with a hard 

 coat. Shrubs or small trees, with commonly deciduous leaves, and axillary 

 or leafy -racemed white and showy flowers on drooping peduncles; produced 

 in spring. Pubescence scurfy or stellate. (The ancient Greek name of the 

 tree which produces storax.) 



1. S. grandifolia, Ait. Shrub 4-12 high; leaves obovate, acute or 

 pointed, u-hite-tomentose beneath (3-6' long) ; flowers mostly in elongated ra- 

 cemes; corolla (J' long) convolute-imbricated in bud. \\ r oods, S. Va. to Fla. 



2. S. pulverulenta, Michx. Shrub 1 - 4 high ; leaves oval or obovate 

 (1 or 2' long), abore sparingly puberulent, and scurf y-tomentose beneath ; flowers 

 (\' long) 1-3 together in the a.rils and at the tips of the branches, fragrant. 

 Low pine barrens, S. Va. to Fla. and Tex. 



3. S. Americana, Lam. Shrub 4-8 high; leaves oblong, acute at 

 both ends (1 -3' long), smooth, or barely pulverulent beneath ; flowers axillary 

 or in 3-4 : flowered racemes (Y long); corolla valvate in the bud. Along 

 streams, Ya. to Fla., La., and Ark. 



2. HALESIA, Ellis. SNOWDROP or SILVER-BELL-TREE. 



Calyx inversely conical, 4-toothed ; the tube 4-ribbed, coherent with the 2 - 

 4-celled ovary. Petals 4, united at base, or oftener to the middle, into an open 

 bell-shaped corolla, convolute or imbricated in the bud. Stamens 8-16; fila- 

 ments united into a ring at base, and usually a little coherent with the base 

 of the corolla; anthers linear-oblong. Ovules 4 in each cell. Fruit large and 

 dry, 2 -4- winged, within bony and 1- 4-celled. Seeds single, cylindrical. 

 Shrubs or small trees, with large and veiny pointed deciduous leaves, and 

 showy white flowers, drooping on slender pedicels, in clusters or short ra- 

 cemes, from axillary buds of the preceding year. Pubescence partly stellate. 

 (Named for Stephen Hales, author of Vegetable Statics, &c.) 



1. H. tetraptera, L. Leaves oblong-ovate; fruit 4-winged, IV long. 

 Banks of streams, W. Va. to 111., south to Fla. 



3. SYMPLOCOS, Jacq. SWEET-LEAF. 



Calyx 5-cleft, the tube coherent with the lower part of the 3-celled ovary. 

 Petals 5, imbricated in the bud, lightly united at base. Stamens very nume- 

 rous, in 5 clusters, one cohering with the base of each petal ; filaments slen- 

 der; anthers very short. Fruit drupe-like or dry, mostly 1-celled and 1-seeded 



