138 UMBELLIFER.E. 



Rich moist woods. June— Sept. Stem erect, 1 to 2 feet high, branched above. 

 Leaflets 3, 2 to 3 inches long, 1 to 2 wide. Petioles clasping, 2 to 6 inches long. 

 Umbels numerous, paniculate, the lower ones rising from the axils of the upper 

 leaves. Flowers small, white. Fruit oblong beaked with the persistent style. 



13. ARCHEMORA. DC. Cowbaxe. 



A fanciful name given by DeCandolle in allusion to Archemarus, who is said to 

 have died from eating psrsley. 



Calyx 5-toothed. Petals obcordate, inflexed. Fruit 

 oval, with £r broad winged margin; carpels with 5 sub-keeled 

 equi-distant filiform ribs ; vittce one in each interstice, and 



4 to 6 on the inner face. — Smooth perennials, with rigid 

 haves, of 3 to 9 linear or lanceolate lea/lets; scarcely any 

 involucre; involucels of numerous small leaflets, and white 

 flowers. 



A. rigida, DC. Rigid Cowbane. 



Stem rigid, striate, erect; leaves simply pinnate; leaflets 3 to 9, varying from 

 lanceolate to ovate oblong, entire, or remotely toothed, in Yar. ammgca, linear, long 

 and narrow. 



Swamps: rare. Aug., Sept. Stem 2 to 4 feet high, slender. Leaflets 2 to 4 by 

 34 to % inches, varying in outline. Umbels 2 to 3, of many slender rays, retais 

 white. ^ Fruit with sub-equal greenish ribs, and # large purple vittae "filling the 

 intervals. Poisonous. 



14. BUPLEURUaL Tourn. Thorough Wax. 



Gr. bous, an ox } pleuron. a rib; it is uncertain why so called. 



Calyx-teeth obsolete. Petals somewhat orbicular, 

 entire, with a closely inflexed point. Fruit ovate-oblong, 

 laterally flattened, or somewhat terminal; carpels 5-ribbed, 

 with or without vittse. — Herbaceous or shrubhy plants, with 

 simple entire leaves; various involucres, and yellow flowers. 



B. rotundifolium, L. Modesty Thorough Wax. 



Leaves roundish-ovate, entire, perfoliate; involucre none; involucels of 5, ovate, 

 mucronate bracts. 



In cultivated grounds; escaped from gardens. Annual. July. Aug. Stem 10 

 to 15 inches high, branching. Leaves 1 to 3 inches long, % as wide, rounded at 

 base, acute at apex, very smooth. Involucels longer than the umb.'llets. I 



5 to 9-rayed. Fruit crowned with the wax-like shining base of the styles. Chrpcii 

 mostly without vittce. 



CULTIVATED EXOTICS. 



15. CARUM. Linn. Caraway. 



From Caria, the native country of the plant. 



Calyx-margin obsolete. Petals obovate, emarginate, 

 the point inflexed. Styles dilated at base ; spreading. Fruit 





