164 UMBELLIFER^E. (PARSLEY FAMILY.) 



cled ; fruit ovate-oblong, the ribs wing-like ; vittae 3 in each interval, and 6 on 

 the commissure. Rich soil, in the upper districts. July and August. Root 

 large, aromatic. 



16. ANGELICA, L. 



Calyx-teeth obsolete. Fruit flattened. Carpels 5-ribbed, the 2 lateral ribs 

 dilated into wings. Vittae single in each interval, and 2-4 on the commissure. 

 Seed adherent to the pericarp. Chiefly perennial herbs, with compound leaves, 

 no involucre, and white flowers. 



1. A. Curtisii, Buckley. Stem smooth; leaves twice ternate, or the di- 

 visions quinate ; leaflets thin, ovate or ovate-lanceolate, often slightly cordate, 

 sharply toothed ; fruit broadly winged ; commissure with 2 vittae. High moun- 

 tains of North Carolina. August. Stem 3 high. Petioles large and sheath- 

 ing. 



17. ARCHANGELICA, Hoffm. 



Calyx-teeth short. Fruit flattened. Carpels ribbed as in Angelica. Vitta; 

 very numerous, entirely surrounding the loose seed. Perennial herbs. Leaves 

 1 - 2-ternate, with pinnate divisions. Leaflets toothed. Upper petioles inflated. 

 Involucre none. Involucel many-leaved. Flowers white. 



1 . A. llirsuta, Torr. & Gray. Upper part of the stem and umbels softly 

 pubescent ; leaflets oblong-ovate, sharply serrate ; fruit pubescent. (A. tri- 

 quinata, Ell. Ferula villosa, Walt.) Dry hills, Florida to Tennessee, and 

 northward. July. Stem 2 - 3 high. 



2. A. dentata, Chapm. Stem slender, smooth ; umbels slightly pubes- 

 cent ; leaflets lanceolate, strongly veined, coarsely toothed ; fruit smooth. Dry 

 pine barrens, Florida. September. Stem 2 - 3 high, branching above ; 

 teeth of the small (') leaflets spreading. 



18. CONIOSELINUM, Fischer. 



Calyx-teeth obsolete. Fruit oval. Carpels somewhat flattened on the back, 

 5-winged, with the lateral wings twice as broad as the dorsal ones. Vittae 2-3 

 in each interval, and 4 - 8 on the commissure. Smooth herbs. Leaves thin, 

 finely 2 - 3-pinnately compound. Involucre none. Involuccls subulate. Flow- 

 ers white. 



1. C. Canadense, Torr. & Gray. Leaflets pinnatifid, with linear-oblong 

 lobes, the petioles inflated ; rays of the umbel slender ; fruit broadly oval. 

 High mountains of North Carolina, and northward. August. Stem 3 - 5 

 high. 



19. TIEDEMANNIA, DC. 



Calyx 5-toothed. Fruit obovate, compressed. Carpels with 5 sharp and 

 slender ribs, winged on the margins. Intervals with single vitta;, and 2 on the 

 commissure. A smooth erect perennial herb, with terete petioles destitute of 

 leaflets. Involucre and involucel 5 - 6-leaved. Flowers white. 



