POLYGONACEAE 383 
ovoid, 3-angled, 6 mm. long, smooth, closely invested by the accrescent and leathery 
hypanthium, which becomes nearly 3 cm. long. 
Along streams, Missouri to South Carolina, Georgia and the Gulf States. Spring and summer. 
13. COCCOLOBIS P. Br. 
Evergreen shrubs or trees, with erect branched trunks, or rarely high-twining vines, 
clothed with a very thin bark. Leaves alternate : blades leathery, entire. Ocreae cylindric 
or funnelform, truncate, acuminate or lobed, membranous, often very small. Flowers per- 
fect, green, on short jointed clustered pedicels subtended by small bracts, disposed in axil- 
lary or terminal, spike-like racemes. Sepals 5, herbaceous, nearly equal, little changed at 
maturity. Hypanthium accrescent, fleshy. Stamens 8 : filaments slender, surmounting 
the hypanthium. Ovary free, 3-angled: styles 3. Ovule erect. Achene ovoid or globose, 
with a crustaceous or bony pericarp, invested by the accrescent hypanthium, to which it is 
sometimes more or less adherent. Seed 3-6-lobed, with a membranous testa. Embryo 
more or less eccentric in the channeled mealy endosperm, its cotyledons cordate. 
Leaf-blades cordate at the base: drupe-like fruit 1.5-2 em. thick. 1. C. wvifera. 
Leaf-blades cuneate or rounded at the base: drupe-like fruit about 1 cm. thick. 2. C. laurifolia. 
1. Coccolobis uvífera (L.) Jacq. A shrub or small tree, 5 m. tall or higher, with a 
short contorted trunk reaching a diameter of more than 1 m. Branches forming a round 
head : leaf-blades suborbicular, often broader than long, 4-20 cm. in diameter, obtuse or 
retuse at the apex, undulate, cordate at the base, short-petioled : ocreae funnelform, less 
than 1 em. long, firm: racemes interrupted, 1-3 dm. long: hypanthium campanulate, 3-4 
mm. broad: sepals obovoid-orbicular, whitish, undulate : filaments subulate, red: fruit- 
ing racemes dense, resembling bunches of grapes, each drupe-like fruit subglobose, 1.5-2 
cm. in diameter, purple or greenish white, with an astringent juicy pulp and a broadly 
ovoid achene with a thin reddish pericarp. 
Along the coast within the influence of the salt water, southern Florida and the Keys. Com- 
mon on the Bahamas and in Bermuda, southern Central to northern South America. Throughout the 
year. SEA-GRAPE. SHORE-GRAPE. 
. 2. Coccolobis laurifólia Jacq. A tree, reaching a height of 20 m. and a trunk 
diameter of 6 dm., the branches spreading. Leaf-blades oblong, ovate or obovate, 5-10 em. 
long, acute or rounded at the apex, entire, slightly revolute, bright green above, paler 
beneath, rounded or somewhat wedge-shaped at the base, short-petioled : ocreae less than 
l em. long, scarious: racemes terminal, 1 dm. or less in length, continuous: hypanthium 
campanulate, 4-5 mm. broad: sepals suborbicular, undulate: stamens 8: filaments subu- 
late, yellow: fruiting racemes interrupted, each drupe-like fruit globose-ovoid, dark red, 
lem. in length or longer, with an acid pulp and an ovoid achene with a hard brown 
pericarp. 
. Along the coast, southern Florida. Also in the Bahamas and northern South America. Fruit 
ripening in winteror spring. 
Order 10. CHENOPODIALES. 
Herbs, sometimes more or less shrubby, occasionally nearly leafless, with 
green, pale or highly colored foliage. Leaves alternate or opposite, sometimes 
reduced to scales. Flowers mostly perfect, sometimes monoecious or dioecious, 
variously disposed, occasionally much reduced. Calyx usually present, the se- 
pals mainly separate. Corolla wanting or present, small and inconspicuous or 
relatively large and showy. Androecium of 1-several stamens. Gynoecium of 
a single carpel or several united carpels. Ovary 1-many-celled, sometimes 1- 
celled by suppression. Styles mainly distinct. Ovules amphitropous or cam- 
pylotropous. Fruit a utricle, achene, or berry, sometimes an anthocarp. Em- 
bryo eurved, annular or coiled. 
A. Fruit a utricle, achene or berry, sometimes an anthocarp, not valvate, or merely circumscissile. 
a. Fruit various, not an anthocarp. 
* Fruit utricular. 
t Bracts not scarious : stipules wanting. 
Stamens inserted at the base of the ovary or in the margin of a 
short hypanthium. Fam. 1. CHENOPODIACEAE. 
Stamens inserted on the margin of an hypanthium which ulti- 
mately exceeds the sepals in length. Fam. 2. SCLERANTHACEAE. 
