1104 OLACACEAE 
Flowers perfect or polygamous, regular, in axillary cymes or racemes, which are 
sometimes contracted in heads. Hypanthium present. Calyx of 4—6-sepals or 
a mere border. Disk sometimes cup-shaped and free, or adnate to the ovary or 
calyx, sometimes annular, scale-like, or obsolete. Corolla of 4-6 petals, distinct 
or united into a more or less tubular corolla, inserted on the disk or receptacle, 
the lobes valvate. Androecium of 4-12 stamens inserted with the petals or ad- 
nate to the corolla-tube: filaments distinct or rarely united: anthers introrse. 
Gynoecium a single compound pistil. Ovary free or immersed in the disk, or 
partially inferior, 1—4-celled, the divisions often incomplete. Styles mostly 
united. Stigma entire or 3-4-lobed. Ovulesanatropous. Fruit a drupe, naked 
or nearly enclosed in the accrescent disk. Seed with a membranous testa. En- 
dosperm fleshy or rarely wanting. Embryo straight. 
Petals united to above the middle: stamens as many as the corolla-lobes and opposite them : drupe 
nearly enclosed in the disk, 1. SCHOEPFIA. 
Petals nearly distinct: stamens twice as many as the petals: drupe naked. 2. XIMENIA. 
1. SCHOLPFIA Schreb. 
Unarmed glabrous tropical shrubs or small trees, commonly with brittle wood. Leaves 
alternate: blades leathery, entire, often lustrous above. Flowers perfect, in solitary or 
clustered short-peduncled axillary cymes. Hypanthium short, cup-shaped, filled with a 
large hypogynous disk which is adnate to the ovary. Petals united to above the middle, 
varying from white to red: lobes 4-6, valvate, recurved. Stamens as many as the corolla- 
lobes, adnate up to their bases: anthers sessile or terminating short filaments. Ovary 
3-celled, mostly immersed in the disk: stigma 3-lobed. Ovule 1 in each cavity. Drupe 
enclosed to near the apex in the adnate accrescent disk : stone crustaceous or parchment- 
like. 
1. Schoepfia Schréberi J. F. Gmel. An unarmed glabrous shrub or tree, several 
m. tall, with pale brittle branches. Leaf-blades ovate or oblong-ovate, leathery, 2-6 cm. 
long, acute or obtusish, entire, acute or abruptly constricted at the base, on short winged 
etioles: peduncles usually 2-3-flowered, solitary or clustered: flowers red or reddish : 
ypanthium cup-like, 2 mm. broad : disk hemispheric, slightly dilated at the entire rim: 
corolla leathery, tubular-campanulate, 4-ribbed, about 4 mm. long, glabrous within and 
without, the 4 ovate lobes curled back, acute: drupe ovoid or oval-ovoid, 10-12 mm. long. 
In coral rock or sand, peninsular Florida and the Keys. 
2. XIMENIA L. 
Tropical usually thorny shrubs or trees, with glabrous or pubescent foliage. Leaves 
alternate, often clustered: blades entire. Flowers perfect, solitary in the axils or m 
axillary cymes. Calyx small. Petals 4-5, valvate, white or yellow, nearly distinct, 
leathery, pubescent within. Stamens 8-10, shorter than the petals: filament filiform, 
erect: anthers linear, opening lengthwise. Ovary 3-4-celled : styles united : stigma capl- 
tate. Ovules 3-4 in each cavity. Drupe pulpy, crustaceous with a woody stone. 
1. Ximenia Americana L. A glabrous thorny shrub or small tree 4-6 m. EY. 
Leaf-blades firm, oblong or elliptie, sometimes broadest above or below the middle, v 
em. long, obtuse or notched at the apex, entire, acute or rounded at the base, common; 
clustered in 3's; petioles 5-10 mm, long: peduncles about as long as the petioles, E 
flowered : flowers yellowish : sepals 4, triangular, acutish : petals 4, leathery, linear, 
cm. long, densely pubescent with bristly rusty hairs within, glabrous without, the tips 
curled back, minutely caudate : stamens shorter than the petals : filaments filiform, shorter 
BS the anthers : drupe subglobose or broadly oval, 14-17 mm. in diameter, yellow : stone 
white. 
In coral rock or sand, peninsular Florida and the Keys. Circumtropical. 
Order 10. RUBIALES. ; 
Herbs, shrubs or trees. Leaves opposite, sometimes whorled : blades mainly 
entire. Flowers perfect, or rarely polygamous, solitary or in variously modified 
cymes. Hypanthium well developed. Sepals 3-6 or rarely 10, sometimes very 
small. Corolla of 3-6 or rarely 10 partially united petals. Androecium of as 
