UMBELLIFERiE 399 



A. atropurpurea, Linn. A groat weed, 3-8 ft. tall, in moist, rich soil or 

 swampy ground, with stem stout, smooth, strong-scented, often purple: 

 leaves large, 3-compound, on petioles with broad, inflated bases: umbels 

 large, flowers greenish white. 



4. OSMORRHIZA. Sweet Cicely. 



Herbs, 1-2 ft. or more, perennial, glabrous or pubescent, from thick- 

 clustered, aromatic roots: leaves 2 or 3 times pinnately compound; 

 leaflets variously toothed, — the whole leaf fern-like: flowers many, small, 

 white, in compound, rayed umbels: fruit linear to linear-oblong, attenuate 

 at base, short-beaked, compressed, with 5 bristly ribs: no oil-tubes. 



O. Claytdnii, Clarke. Stout, downy, 1-2 or 3 ft.: style conical, shorter 

 than the ovary. 



O. longistylis, DC. Glabrous or nearly so, otherwise much like the pre- 

 ceding: style slender and about as long as the ovary: root aromatic. 



5. ERIGENiA. 



Little, glabrous perennial, early flowering: simple stem, springing from 

 a rounded tuber: leaves finely compound: flowers in small clusters, in 

 leafy bracted umbels, small, white; calyx-teeth wanting; petals obovate or 

 spatulate: fruit nearly orbicular, compressed on sides, glabrous, notched 

 at both ends. 



E. bulbosa, Nutt. Harbinger of spring. A delicate and pretty but incon- 

 spicuous plant, 4-10 in. high, springing from the ground in earliest 

 spring, on sunny slopes of woodlands. The little white petals and brown or 

 purplish anthers give a "pepper-and-salt" appearance. 



6. APIUM. Celery. 



Annuals or biennials, with large pinnate leaves: flowers white, in small 

 umbels: fruit small, usually as broad as long, each carpel 5-ribbed: axis, 

 from which the carpels fall, not splitting in two. 



A. graveolens, Linn. Celery. Biennial, smooth: leaflets 3-7, wedge- 

 shaped or obovate, the lower ones about 3-divided, round-toothed, Europe: 

 cultivated for its petioles, which have become greatly enlarged. Many 

 cultivated forms. 



7. CARUM. Caraway. 



Slender and erect, smooth annual and biennial herbs with pinnate 

 leaves: flowers white, in compound umbels provided with involucres: axis 

 bearing the carpels, splitting in two at maturity. 



C. Carui, Linn. Caraway. Stem furrowed, 1-2 ft.: leaves cut into 

 thread-like divisions: flowers white. Europe. Cultivated for its fruits, 

 known as "Caraway seed," and also run wild. 



C. hortense, Hoffm. (C. Petroselinum, Benth. Petroselinum hortense, 

 Hoffm.). Parsley. One to 3 ft. : leaflets ovate and 3-cleft, often much cut or 

 "curled" in the garden kinds: flowers yellowish. Europe. Grown for its 

 foliage, used for garnishing and flavoring. 



