ORDER LXVI. RUBIACE^. 343 



tire, or slightly serrate. — White. \> . April — May.. Low country. 

 2—3 feet. 



Gknus VI.— SAMBU'CUS. Tourn. 5—3. 

 (From scar.buke, a musical instrument made from the wood.) 



Calyx 5-parted. Corolla o-cleft. Stamens 5. Stigmas 3. 

 Fruit a globose, 3-seeded berry. 



1. S. Canaden'sis, (L.) a shrub, thickened at the joints with glabrous 

 branches. Leaves generally bipinnate ; leaflets oblong-oval, acutely 

 serrate, acuminate, glabrous, shining. Calyx small. Corolla rotate, 

 with revolute, oval segments. F/oicers in axillary cymes, i^ru/i glo- 

 bose, black. — White. ^ . April — May. Wet grounds. Common. 

 8—15 feet. JSlder. 



Order LXVL— RUBIA''CEJS. {Peruvian-hark Family.) 



Calyx superior, or sometimes nearly inferior, mostly 4 — 5- 

 toothed, occasionally obsolete. Corolla inserted in the calyx, 

 4 — 5-lobed. Stamens 4 — 5, inserted into the corolla. Ovary 

 2 — 3-celled, 1 — many ovules. Fruit various. Trees, shrubs, 

 or herbaceous plants, with opposite or verticillate, stipulate 

 leaves. [This order includes the orders Stellatem and Cincho- 

 naceoeA 



ANALYSIS. 



1. Leaves in whorls 8 



Leaves opposite 3 



2. Corolla rotate, small GoUum, 1 



Corolla campanulate Rabin, 2 



3. Shrubs 4 



Herbaceous plants 5 



4 Stamens 4 Cephnlanthun, 5 



Stamens 5 Mitchella, 6. Pinckr.eya, S 



5. Stamens 5 Mitreola, 9 



Stamens 4 <» 



6. Evergreen, creeping plants JfitcheUa, 6 



Not evergreen plants 7 



7. Calyx 2-leaved Diodia, 4 



Calyx 4-leaved or 4-parted 8 



8. Corolla rotate Polypremum, 10 



Corolla not rotate 9 



9. Fruit many-seeded Iledyotia, 7 



Fruit few-seeded Spermacoce^ 3 



Sub-order L— STELLATED. 



Leaves whorled. Ovary inferior. Herbaceous plants. 



Genus I.— GA'LIUM. L. 4—1. 

 (From galUy milk, which some species curdle.) 



Calyx \\\i\\ the tube ovate-globose, or oblong ; limb nearly 

 wanting. Corolla rotate, 4-parted. Stamens 4. Style '2-clefu 

 Fruit didymous. 



