Order 15.— STYRACACEiE. 499 



1. SYRTPLOCOS, Jacq. (Gr. ovfj,TrXouog, connected; referring to the 

 stamens.) Calyx 5-clett ; corolla 5-parted, spreading, imbricated in 

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

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

 herent ; drupe dry, with a 3-celled, mostly 1-seeded 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 ; Us. 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 6' 

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

 dye. Fr. oblong-ovoid (3 to G ' long), crowned with the calyx teeth. Mar., Apr. 



2. STTRAX, Tourn. Calyx eampanulate, truncate or 5-toothed ; 

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

 joined to the base of the corrolla, 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 lvs. and axillary 

 racemes of white, drooping, showy fls. 



1 S. pulverulenta Ms. Branchlets, pedicels, and calyx pidvcrulerd-downy ; 

 hs. 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 I' by 8 to 

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

 Pet. 6" long. Mar., Apr. 



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

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

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

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

 long. Rac. 3 to 5-flowered. Fls. G to 1" long, axillary, and partly naked. Cal. 

 l"long. Apr. (S. glabrum Mx.) 



ft. leve. Lvs. thicker; pedicels shorter than the flower; corolla downy. — 

 Car. to La. The lvs. ar.j often ovate. (S. leve Walt.) 



3 S. grandifdlia Ait. Lvs. ample, broadly obovate, acute at base, short-acumV 

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

 longer than, the lvs., co-flowered. — Va, to Fla.. common. Shrub 6 to 121' high. 

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

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



ft. geaxdidzn'tata (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., FM.S., 17-30.) Calyx obconic, briefly 



4-lobed; corolla inserted into the calyx, eampanulate, 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 lvs. pen- 

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



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

 half way; sty. much exserted, 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. (l'long), petals slightly united at base, 

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

 up; fr. 2-vvinged.— Woods, Car. to Fla, W. to Ark. Small or largo tree, usually 



