UMBELLlFEfiJE. 162 OSMORHTZA, 



C. CaNADE'NSE. T. ^ G. Cnidum Canadense. Spr. 



Fruit broadly oval ; vittm solitary in the dorsal intervals, 5 — 3 in the lateral 

 ones. In damp w^oods, growing H — 5 feet higii. Leaves compounded in a 

 pinnate manner, dissected into pinnatifid segments. Umbels compound. In- 

 volucre wanting, or of a few, subulate bracts. Involucel-s of 5 — 6 bracteotes.^ 

 Flowers white. Rare. Aug. Sept. 



20. DISCOPLEU'RA. 



Caljx-teeth subulate, persistent; petals ovate, entire, with 



a minute intlexed point; fruit ovate, often didymous; carpels 



5-ribbed, the 3 dorsal, filiform, sub-acute, prominent; the 2 



lateral, united to a thick, accessory margin; seeds subterete. 



Gr. 5io-x.o«, the disk, and TrXEi/^a, a rib; i. e. the disk and ribs (of the seedy 

 united. Intervals with single vittce. Bracts of the involucre 3 — 5-parted of 

 nearly entire. — Annual herljs. 



D. capilla'cea. 



Erect or procumbent; umbels 3— 10-rayed; leaflets of the involucre 3—5, 

 generally 3-clefl. In swamps (Conn.), growing about a foot high, with many 

 branches, and leaves numerous, cut and cleft in a ternate manner into capil- 

 lary segments. Involucels large. Flowers white, succeeded by ovate fruit. 



21. A'PIUM. 

 Fruit roundish, ovate, with 6 acute, dorsal ribs, intervals 

 flat; petals roundish, suboqual, with an inflected point ; styles 

 greatly dilated at base.; receptacle thin, round, wavy; flow- 

 ers all perfect. 



Celtic cqwn, water; the plant grows in watery situations. European. 



1. A. petroseh'num. 



Cfiullne leaves linear; involucra minute. This well known seasoning-herb, 

 is said to be a native of Sardinia. Cultivation has produced several varieties. 

 The roots of the larger varieties are used to communicate an agreeable flavor 

 to soups. The leaves are much esteemed for soups and as a garnish. Stem 

 about 3 feet high, with umbels of yellowish flowers. Jn. Bienn. Parsley. 



2. A. grave'olens. 



Cauline haves wedge-shaped. Native of Britain. Highly esteemed as a 

 salad, and as a seasoning in soups. It is a remarkable instance of the effect 

 of cultivation, being in its wild state, rank, coarse and unfit to eat; and when 

 properly cultivated, sweet, crisp, juicy and of a most agreeable flavor. Hight 

 4 feet. Flowers white. Jn.— Aug. Bienn. Cdenj 



Suborder II, CAMPYLOSPERM.E. 

 The inner surface of the seed deeply furrowed, or with involute margins. 



22. OSMORHI'ZA. 

 Involucre few-leaved; involucel 4— 7-leaved ; flowers of 



