ORDEE 75. STYRACACE^E. 499 



1. SYM'PLOCOS, Jacq. (Gr. OV^TT^OKO^ connected; referring to the 

 stamens.) Calyx 5-cleft ; corolla 5-parted, spreading, imbricated iu 

 bud ; stamens oo, in 5 clusters, one attached to the base of each petal, 

 filaments slender, anthers globular ; ovary 3-cellcd, the lower half ad- 

 herent; drupe dry, with a 3-cellecl, mostly 1-secded nut. Shrubs or 

 trees, with axillary clusters or racemes of small yellow fls. 



S. tinctoria L'Her. Lvs. oval or elliptical, acuminate, acute at base, thick, ob- 

 scurely denticulate, puberulent beneath ; fls. sessile, in axillary, dense clusters of 

 6 to 12 ; cal. lobes ovate, obtuse. Va. to Fla. and La. A small tree 10 to 20f 

 high. Lvs. mostly evergreen, crowded near the ends of the branches, 3 to 5' 

 long, sweet to the taste, turning yellowish in drying, and affording a useful yellow 

 dye. Pr. oblong-ovoid (5 to 6'' long), crowned with the calyx teeth. Mar., Apr. 



2. STY'RAX, Tourn. Calyx campanulatc, truncate or 5-toothed ; 

 corolla deeply 5-parted, much longer than the calyx ; stamens 10, 

 joined to the base of the- corolla, filaments united into a short tube at 

 base ; anthers linear, erect ; ovary adherent at base ; fruit coriaceous, 

 1 -celled, mostly 1 -seeded. Shrubs with alternate Ivs. and axillary 

 racemes of white, drooping, showy fls. 



1 S. pulverulenta MX. Branchlets, pedicels, and calyx pulverulent-downy; 

 Ivs. broadly oval, obtuse, glandular-serrulate, rust- downy beneath; fls. axillary and 

 2 or 3 together at the end of the branchlets. Va, to Fla. Shrub 2 to 3f high, 

 growing in clumps, wet places. Branches virgate. Lvs. small, about 1' by 8 to 

 9", nearly sessile. Ped. 2 to 3" long. Cal. hoary, with minute, sharp teeth. 

 Pet. 6" long. Mar., Apr. 



2 S. Americana Lam. Plant glabrous ; Ivs. oblong or elliptical acute at each end, 

 wavy or remotely denticulate at edge ; rac. leafy, few-flowered ; pedicels shorter 

 than or about as long as the flower; cal. turbinate, short. Shrub with slender, 

 straggling branches, 4 to 8f high, in swamps, Va. to Fla. and La. Lvs. 1 to 3' 

 long. Rac. 3 to 5-flowered. Fls. 6 to 7" IOIJR;, axillary, and partly naked. Cal. 

 1" long. Apr. (S. glabrum MX.) 



/?. LEVE. Lvs. thicker; pedicels shorter than the flower; corolla downy. 

 Car. to La. The Ivs. are often ovate. (S. leve Walt.) 



3 S. grandifolia Ait. Lvs. ample, broadly obovate, acute at base, short-acum'v 

 nate or acute, entire or dentate, hoary-tomentous beneath; rac. tomentous, naked, 

 longer than the Ivs., co-flowered. Va. to Fla., common. Shrub 6 to 12f high. 

 Lvs. 3 to 6' by 2 to 5', the petioles only 3 to 4". Eac. often branched, 5 to 8' ; 

 cor. imbricated in bud, wide bell-shaped, longer than the pedicels. Apr., May. 



/?. GRANDIDENTATA (Feay). Lvs. strongly dentate, smaller (2 to 3' by 1 to 2'), 

 pet. nearly as broad as long. Ga. 



3. HALE'SIA, Ellis. SNOWDROP TREE. (To the learned and ven- 

 erable Stephen Hales, D.D., F.R.S., 1730.) Calyx obconic, briefly 

 4-lobed ; corolla inserted into the calyx, carnpanulate, with a narrow 

 base, 4-cleft or 4-parted ; stamens 8 to 12, connate into a tube below ; 

 style filiform, pubescent ; fruit dry, 4-winged, wings equal or alternately 

 smaller ; seeds 1 to 3. N. Am. shrubs or trees. Lvs. alternate, abruptly 

 acuminate, finely denticulate or entire. Fls. in advance of the Ivs. pen- 

 dulous, in lateral clusters of 3 to 5, white, showy. 



1 H. tetraptera L. Lvs. oblong-ovate ; cor. (6" long) petals united more than 

 halfway; sty. much cxserted, twice longer than the 12 stamens; fil. slightly 

 united ; fr. equally 4-winged. Va. to Ky. to Fla. Shrub or small tree 10 to 20f 

 high. Lvs. downy beneath, at length ample (2 to 5' by 1 to 3'). Fls. in clusters 

 of about 3, shorter than the pedicels. Apr., May. 



2 H. diptera L. Lvs. oblong-obovate ; cor. (!' long), petals slightly united at base, 

 oblong-obovate, style not exsert. as long as the 8 stamens ; fil. united half way 

 up; fr. 2- winged. Woods, Car. to Fla., W. to Ark. Small or large tree, usually 



