EUrHORBIACE,£. (spurge family.) 405 



2. S. aquatica, n. sp. Shrubby ; stem single, erect from a fibrous Bpongy 

 root, umbellately or alternately branched above, thickened near the base ; leaves 

 lanceolate, mostly acute, tapering at each end, short-petioled, sharply serrulate, 

 the uppermost yellowish; stipules bristly; spikes mostly shorter than the leaves, 

 terminal and in the forks of the stem; glands peltate; stamens 2; capsule 

 smooth; Beeds globose, pitted, silvery-coated. — Pine-barren ponds, Florida to 

 South Carolina. May- Sept. — Stem 3°- 6° high. Leaves 2' -4' long. 



3. S. ligUStrilia, Michx. Shrubby ; branches alternate, slender ; leaves 

 petioled, ovate-lanceolate or oblong-ovate, mostly obtuse, narrowed at the base, 

 entire ; stipules ovate ; spikes short, often by pairs, shorter than the leaves, lat- 

 eral and terminal ; stamens 3 ; capsule and oval seed smooth. — River-swamps, 

 Florida to North Carolina, and westward. May- Aug. — Shrub 6°- 12° high. 

 Branches spreading. Leaves l'-3' long. 



4. S. sebifera, Michx. Arborescent; leaves long-petioled, rhomboidal, 

 acuminate, entire ; spikes terminal, densely flowered ; sterile flowers pedicelled ; 

 calyx 4-toothed; stamens 2; capsule roughish; seeds white. — Georgia and 

 South Carolina, near the coast; introduced from China. June and July. — A 

 tree 20° - 40° high. 



4. EXCCECARIA, L. 



Flowers monoecious or dioecious, apetalous. Sterile flowers in cylindrical 

 spikes, sessile. Calyx 3-parted. Stamens 2-4, partly monadelphous : anthers 

 pendulous. Fertile flowers few or solitary at the base of the sterile spike, sessile 

 or peduncled. Calyx 3-sepalous ; style 3-parted : stigmas entire, spreading. 

 Capsule of three 1-celled, 1-seedcd, 2-valved carpels. — Shrubs or trees, with 

 milky juice, and alternate serrate or crenate leaves. 



1 • E. lucicla, Swartz. Smooth ; leaves coriaceous, petioled, obovate or 

 oblong, obtuse or emarginate, crenate ; fertile flowers solitary or by pairs, loug- 

 peduncled, nodding ; capsule round-angled, smooth, like the ovoid seed. — South 

 Florida. — Tree 30° - 40° high. Leaves 1 ' - 1 %' long. 



5. AOALYPHA, L. 



Flowers monoecious, apetalous, in axillary and terminal spikes. Staminate 

 flowers clustered, minutely bracted. Calyx 4-parted. Stamens 8-16, with the 

 filaments united at the base ; anthers pendulous. Pistillate flowers at the base 

 of the staminate ones, or on separate spikes, surrounded by a leafy toothed bract. 

 Calyx 3-parted. Styles 3, many-cleft. Capsule roundish, of three 1-celled, 

 1-seeded, 2-valved carpels. — Herbs, with watery juice, and alternate serrate 

 leaves. 



* Staminate and pistillate flowers on the same spike. 



1. A. Virgillica, L. Annual," smoothish or hairy ; stem erect, branched ; 

 leaves thin, long-petioled, rhombic-ovate or oblong-ovate, acute, coarsely serrate 

 above the middle ; staminate spikes few-flowered, mostly shorter than the large 

 5-9-lobed bracts, with 1-3 pistillate flowers at the base; capsule jmbescent. — 



