ORDER 112. EUPHORBIACE^l 629 



Our most delicate species. Lvs. 1 to 2" long and less, elegant!/ variegated. 

 Seeds minute, light brown. (E. herniarioides Nutt.) 



2. STILLIN'GIA, Card. (Named for Dr. Benjamin Stillincj fleet.) 

 Flowers 8 , in a terminal, dense spike, apetalous ; $ calyx cup-form, 

 lobed and crenulate ; stamens 2, filaments exserted, with short, 2-lobed 

 anthers; ? calyx 3 -lobed; style trifid, with 3 diverging, simple stig- 

 mas; capsule 3-lobed, 3-celled, 3-seeded. Plants smooth, erect, with 

 alternate Ivs. Fertile fls. at the base of the sterile spike. 



1 S. sylvatica L. St. herbaceous or shrubby at base ; Ivs. oval-lanceolate, cuneate 

 at the subsessile base, obtuse at apex, serrulate ; spike solitary, simple, with large, 

 cup-shaped glands among the yellowish flowers. It Sandy soils, Va. to Fla. and 

 La. St. mostly simple, 18' to 3f high. Lvs. 2 to 3 to 4' long, thick, smooth. 

 Spike 2 to 3' long. May, Jn. 



2 S. ligustrina MX. Shrubbj'-, branching; Ivs. lanceolate, tapering to both ends, 

 very entire, petioktte; staminate fls. short-pedicelled, 1 to each bract, with 2 

 glands. In Ga. and Car., margins of streams. Plant 6 to 12f high. Description 

 compiled from Michaux, Pursh and Nuttall. We have not seen the plant. 



3 S. sebifera L. TALLOW TREE. Arborescent, with very smooth branches, Iv9. 

 long-petiolfd, rhomboidal, acuminate, entire ; sterile fls. very small, many from each 

 involucre; fruit stalked, large (6" diam.) for the genus. Seacoast, S. Car., Ga. to 

 La. Tree 20 to 40f high. Lvs. as broad as long (2 to 4'), conspicuously pointed. 

 Petioles of equal length. China. 



3. TRA'GIA, Plum. (From Tragus, an early German botanist.) 

 Flowers 8\ corolla none ; $ calyx 3-parted ; stamens 2 or 3, distinct; 



$ calyx 5 to G to 8-parted, persistent ; style 3-cleft, stigmas 3 ; fruit 3- 

 lobed, 3-celled, separating into 3 bivalve, 1-secded nutlets. It Herbs 

 (or tropical shrubs), often climbing. Lvs. mostly alternate, pubescent, 

 stipulate. Fls. small, racemed. 



* Stem twinin?. Leaves cordate, sharply serrato .................................... No. 1 



* Stem erect. Leaves subeordate at base, acutely serrate ............................ No. 2 



Leaves cuneate or obtuse at base, obtusely serrate or entire ......... Nos. 3, -4 



1 T. xnacrocarpa Willd. Reclining, much branched, its slender summits twin- 

 ing, sparsely hirsute; Ivs. long-petiolate, cordate-ovate, acuminate, sharply ser- 

 rate; rac. much elongated; fr. large. Hedges, copses, Ky. (Michaux) to La. 

 (Hale). Sts. 2 to 4f long. Lvs. large (1 to 3' long), exactly heart-shaped. Fr. 

 nearly half an inch diam. (T. cordata MX.) 



2 T. tirticaef61ia MX. Erect, hirsute, sparingly branched ; Ivs. ovate-lanceolate, 

 unequally and sharply serrate, subeordate or truncate at base, on short petioles; 

 rac. axillary, elongated ; fr. very hairy ; sds. globular, very smooth, hollow. S. 

 States, common. Plant 1 to 2f high. Lvs. 2 to 3' long, half to a fourth as wide. 

 Fruit 3" diam. May Aug. (T. angustifolia Nutt.) 



3 T. iirena L. Erect, branched, villous-pubescent ; Ivs. obovate-oblong, varying to 

 lance-linear, cuneate at base, subsessile, coarsely few-toothed above, or entire ; rac. 

 axillary, bracted, few or many-flowered ; fr. downy. Dry grounds, Va. to Fla, 

 and Ala. A homely weed, 10 to 15' high, half shrubby, soft downy, and not (as 

 Linnseus supposed) stinging. Branches mostly simple. Lvs. l p or more long. Fr. 

 downy, about 4" diam. 



ft. LINEARIS. Lvs. elongated, linear nearly or quite entire. Ga. to Fla. Seeds 

 usually hollow as in all tho varieties. (T. linearifolia Ell.) 



4 T. betonicasfolia Nutt. Much branched from a decumbent base, hairy; Ivs. 

 oval, obtuse at both ends, coarsely crenate-dentate, short-petioled ; stip. oval, con- 

 spicuous; fls. mostly solitary, opposite to the leaves, pedunculate. Near N. 

 Orleans (Hale). Plant If high. Lvs. 1' or moro long. 



4. ACAL'YPHA, L. THREE-SEEDED MERCURY. (Gr. aKaMtfrj, tho 

 itle.) Flowers 8 ; corolla ; 3 very small, in short spikes; calyx 4- 



