256 
3. CENTUNCULUS Dill. (CHAFFWEED.) 
Small annuals, with alternate entire leaves, solitary inconspicuous 
axillary flowers, 4 or 5-parted calyx, 4 or 5-cleft rotate corolla (shorter 
than the calyx) with an urn-shaped short tube and usually withering 
on the summit of the many-seeded circumscissile pod, 4 or 5 stamens, 
and beardless filaments, 
1. C. minimus L. Stems ascending, 5 to 15 cm. long: leaves ovate, obovate, or 
spatulate-oblong: flowers nearly sessile, the parts mostly in fours.—A species of the 
Mississippi and Gulf States and extending into Texas, 
4. SAMOLUS Tourn. (WATER PIMPERNEL, BROOK-WEED.) 
Smooth herbs, with alternate entire leaves, small white racemed 
flowers, 5-cleft calyx with tube adherent to the base of the ovary, some- 
what bell-shaped 5-cleft corolla commonly with 5 sterile filaments in 
the sinuses, 5 true stamens on the corolla-tube and included, and glo- 
bose many-seeded pod 5-valved at summit. 
1. S. Valerandi L. Stem erect, 15 to 30 cm. high, leafy: leaves obovate or spatu- 
late, the basal rosulate: bracts none: slender pedicels ascending, bracteolate in the 
middle: corolla hardly 2 mm. long, the sinuses bearing inflexed sterile filaments.— 
A European species, represented throughout the United States, in wet places, by 
var. AMERICANUS Gray, which is more slender, becoming diffuse, with racemes often 
panicled, the pedicels longer and spreading. 
2. S. ebracteatus HBK. Leafy stems short: leaves fleshy, obovate or spatulate, 
the lower tapering into a winged petiole and decurrent: racemes long-peduncled or 
as ifonascape: pedicels without bract or bractlet: corollaabout 4 mm. long, bear- 
ing no sterile filaments,—Saline and brackish soil, extending from the Gulf States 
through Texas into Mexico, 
SAPOTACEH. (SAPODILLA FAMILY.) 
Trees or shrubs, with simple and entire alternate leaves, small and 
perfect regular flowers usually in axillary clusters, free and persistent 
‘alyx, fertile stamens commonly as many as the lobes of the hypogy- 
nous short corolla and opposite them (inserted on its tube along with 
one or more rows of appendages and scales or sterile stamens), anthers 
turned outward, single pointed style, and a 4 to 12-celled ovary with a 
single ovule in each cell. 
1. BUMELIA Swartz. 
Shrubs or small trees, with very hard wood, small white flowers in 
axillary fascicles, leaves often fascicled on short spurs, often spiny 
branches, 5-parted calyx, 5-cleft corolla with a pair of internal append- 
ages at each sinus, 5 fertilestamens with arrow-shaped anthers, 5 petal- 
like sterile stamens alternate with the corolla-lobes, 5-celled ovary, and 
a small black cherry-like fruit containing a large ovoid and erect seed. 
1.B.lanuginosa Pers. Spiny, 3 to 18 m. high: leaves oblong-obovate or wedge-obo- 
vate, rusty-woolly beneath, obtuse, 3.5 to 7 cm. long: clusters 6 to 18-flowered, pubes- 
cent: fruit8 to 10 mm, long, oval,—Extending from the Gulf States and Lower Missis- 
