70 FRANGULACEAE. 



Leaf-rachis winged : blades of the leaflets obtuse, at least not acuminate : petals 



short-clawed. 1. 8. Saponaria. 

 Leaf-rachls wingless : blades of the leaflets acuminate : petals 



long-clawed. 



Mature carpels globose : seed globose or spheroidal. 2. 8. marginatus. 



Mature carpels oval or obovold : seed somewhat elongate. 3. 8. manatensis. 



1. S. Saponaria L. Shrub, or tree becoming 10 m. tall: leaflets 4-7; blades 

 oblong, oval, or obovate, 3-12 cm. long; leaf-rachis winged: mature carpels 

 globose, 14-18 mm. in diameter. SOAPBERRY. FALSE-DOGWOOD. 



Hammocks, E. Keys and adj. pen., and F. Keys. (W. I.) 



2. S. marginatus Willd. Tree 10-15 m. tall, the twigs and inflorescence pubes- 

 cent: leaflets 7-13; blades lanceolate to oblong-lanceolate, 5-15 cm. long: 

 leaf-rachis margined above: mature carpels globose, 10-15 mm. in diameter. 



Hammocks along or near the coast, pen. Fla. (Core*., W. I.) 



3. S. manatensis Eadlk. Tree becoming 10 m. tall or shrub, the twigs and 

 inflorescence glabrous: leaflets 7-13; blades oblong-lanceolate: leaf-rachis 

 wingless: mature carpels oval or obovoid, 20-23 mm. long. 



Hammocks, islands about the mouth of the Manatee river. (Endemic.) 



Order RHAMNALES. 



Shrubs, trees, or vines. Leaves typically alternate. Flowers regular, 

 sometimes imperfect or incomplete. Calyx present. Corolla present or 

 wanting. Androecium of as many stamens as there are sepals. Gynoe- 

 cium of 2 or more united carpels. Ovary superior or nearly so. Fruit 

 a capsule or a berry, or drupaceous. 



Sepals manifest : petals involute : fruit capsular or drupaceous. 



Fam. 1. FRANGULACEAE. 

 Sepals minute or obsolete : petals valvate : fruit baccate. Fam. 2. VITACEAE. 



FAMILY 1. FRANGULACEAE. BUCKTHORN FAMILY. 



Shrubs, trees, or vines. Leaf-blades simple, pinnately veined. 

 Flowers perfect or polygamous, or sometimes dioecious. Calyx of 4 or 5 

 sepals. Corolla of 4 or 5 petals, or wanting. Androecium of 4 or 5 

 stamens opposite the petals. Gynoecium of 2 or 3 united carpels. Fruit 

 capsular or drupaceous, sometimes separating into nutlets. 



Fruits drupaceous, pulpy, the stone 1-3-celled. 

 Petals wanting. 



Sepals crested. 1. KRDGIODENDBON. 



Sepals crestless. 2. REYNOSIA. 



Petals present. 3. BERCHEMIA. 



Fruits dry or baccate, with 2-4 separating nutlets. 



Fruit fleshy : disk forming a hypanthium with the ovary 



seated in the bottom of it. 4. SAGERETIA. 



Hypanthium flattish : disk conspicuous. 

 Hypanthium cup-like : disk inconspicuous, but lining 



the hypanthium. 5. RHAMNUS. 



Fruit dry : disk annular the ovary Immersed in it. 

 Fruit not winged, seated in the persistent calyx. 



Sepals inflexed : petals on slender claws. 6. CEAXOTHUS. 



Sepals spreading : petals sessile, involutely folded 



over the filaments. 7. COLUBRINA. 



Fruit winged, crowned with the sepals. 8. GOUANIA. 



1. KRUGIODENDBON Urban. Shrubs or trees. Leaves nearly opposite: 

 blades entire. Flowers perfect. Sepals 5, crested within. Petals wanting. 

 Stamens 5: filaments longer than the anthers. Drupe apiculate. 



