122 RUBIACEAE. 



Petals united to above the middle : stamens as many as the corolla-lobes and oppo- 

 site them : drupe nearly enclosed in the disk. 1. SCHOEPFIA. 



Petals nearly distinct : stamens twice as many as the petals : drupe 



naked. 2. XIMENIA. 



1. SCHOEPFIA Schreb. Unarmed shrubs or trees. Leaf-blades entire 

 Hypanthium filled with an elevated disk. Sepals broad. Petals united to above 

 the middle. Filaments adnate to about the middle of the corolla-tube. Anthers 

 oval or ovoid. Ovary about i inferior. 



1. S. chrysophylloides (A. Bieh.) Planch. Shrub or small tree, with pale 

 branches: leaf-blades ovate to oblong-ovate, 2-6 cm. long: corolla ai-out 4 mm. 

 long; lobes ovate, glabrous: drupes ovoid or oval-ovoid, 10-12 mm. long. 

 WHITEWOOD. 



Coastal hammocks, s. pen. Fla. and the F. Keys, also in hammocks of the E. 

 Keys. (W. I.) 



2. XIMENIA [Plum.] L. Thorny shrubs or trees. Leaf-blades entire. 

 Hypanthium without an elevated disk. Sepals minute. Petals nearly distinct. 

 Anthers linear. Ovary nearly superior. 



1. X. americana L. Shrub or small tree, with dark branches: leaf -blades ob- 

 long to elliptic or nearly so, 3-7 cm. long: corolla about 10 mm. long; lobes 

 linear, densely pubescent within: drupes subglobose or broadly oval, 14-17 

 mm. long. TALLOW-WOOD. 



Hammocks, pen. Fla. and in hammocks and pinelands, E. Keys and F. Keys. ( W. I.) 



Order RUBIALES. 



Herbs, shrubs, or trees. Leaves opposite, sometimes whorled. 

 Flowers perfect or polygamous, axillary or cymose. Hypanthium perfect. 

 Calyx of 2 or more often small sepals. Corolla of 3 or more partially 

 united petals. Androecium of as many stamens as there are petals or 

 twice as many. Gynoecium 2-several carpellary. Ovary wholly or par- 

 tially inferior. Fruit a capsule, a berry, or a drupe. 



Leaves with stipules adnate to the stem between the leaf-bases. 



Fam. 1. RCBIACEAE. 

 Leaves without stipules, or if present these adnate to the 



petiole. Fam. 2. CAPEIFOLIACBAB. 



FAMILY 1. EUBIACEAE. MADDER FAMILY. 



Herbs, shrubs, trees, or vines. Leaves opposite or whorled, with 

 interpetiolar or foliaceous stipules. Flower perfect or polygamous, regu- 

 lar or nearly so. Calyx of 2-6, or more, sepals surmounting the hypan- 

 thium, or obsolete. Corolla of 3-6, or more, more or less united petals. 

 Androecium of as many stamens as there are petals and alternate with 

 them. Gynoecium 2-several-carpellary. Fruit a capsule, a drupe, or a 

 berry. 



Cavities of the ovary with several or many ovules : seeds several or many. 

 Fruit dry : capsular. 



Seeds wingless : sepals long and narrow, some in the outer flowers foliaceous : 



anthers short and thick. 1. PINCKNEYA. 



Seeds winged : sepals minute : anthers long and slender. 2. EXOSTEMA. 

 Fruit pulpy : baccate. 

 Fruit 2-celled. 



Flowers in cymes. 3. CASASIA. 



Flowers solitary. 



Sepals 5 : corolla-lobes 5 : free portions of the 



filaments short : anthers oblong or nearly so. 4. RANDIA. 



