210 THE FLORA. 



a Fruit flattened. Leaves roundish. Pennywort. Hydrooo'tyle. 



a Fruit globular. Lvs. linear. Fls. pedicelled. Height 1-2'. r. Cbakt'zia. 

 b Fruit clothed with hooked prickles. Heads small, l-i. c. Sanicle. Sanic'ula. 1 

 b Fruit clothed with scales. Heads o5ten near 1' thick. W. S. c. Eetn'otom. 



c Umbels not radiate (§ 255, a, outer flowers not larger than the rest) d 



c Umb.rad., very large. Huge herbs, •t-8f. high, c. Cow Parsnip. B-krao'levh, 

 d Leaves simple linear petioles without blades. S. Tiedman'nia. 



d Leaves only once divided, pinnately or ternately e 



d Leaves twice or thrice compounded g 



i Fruit flattened or contracted, more or less, on the sides f 



e Fruit much flattened on the back. M. S. Arcliemore. Aechemo'ea. 



f Leaflets 3, ovate, doubly serrate. Stem l-2f. high. Honanort. Cbtptot.j;'nia. 2 

 f Leaflets 8, long, linear, grass-like. Eare. S. Neneleaf. Netjeophyl'lum. 



f Leaflets 5-11, lanceolate or lance-linear. 2-6f! Water Parsnip. Si'mn. 



f Leaflets 5-9, oblong. Stem procumbent. B. Marsh Xfmbel. HELcsoiAo'inM. 



Z Bracts of the involucre (not involucel) entire h 



g Bracts of the involucre cleft and divided k 



g Bracts of the involucre none or almost none. , . .m 

 h Fruits bristly, club-shaped, few. Stem l-2f high. Cicely. Osmoehi'za. 8 



h Fruits smooth, flattened' on the aides, ribs wavy. Poison Hemlock. Coki'hm. 4 

 h Fruits smooth, flattened on the back, ribs winged, straight, r. Conioseh'ndm. 

 h Fruit smooth, terete, not flattened, ribs straight. Lavage. LiGUs'Ticujr. 



k Fruits bristly, short, numerous. Often cultivated. Carrot. Dah'oos. 



k Fruits smooth. Stems and leaflets thread-like. Eare. Disooplbu'ea. 



k Fruits smooth. Stem 3-6' erect, bulbous. W. Pepper-and-Salt. Eeigeni'a. 5 

 m Fruit,flattcned on the back. Stems large, c. Angelica. Aechangi;;l'ioa. 



m Fruit flattened on the sides n 



m Fruit terete, not flattened. Poison. N. Eare. FooVs Parsley. JEthu'sa. 



n Calyx 5-toothed. Steins diffuse, slender. W. Chervil. Cn.«E0PHrL'i.TiM. 



u. Cal. 5-toothed. Umbels stalked. Sts. erect, very slender. S. Leptooac'lis. 



ji Calyx teeth none, fruit strongly ribbed. Poison. Water Hc-Tnlnck. Ciou'ta. 6 



li Calyx teeth none, fruit scarce-ly ribbed. V\ . Eare. Crest Umhel. Eu'lophus. 

 c Involucels leafy. Leaves perfbliate, simple, entire. * Modesty. Bupleu'eum. 

 c Involucels minute. Seed with 5 winged ribs. Golden Alexanders. Thas'pium. 7 

 Involucels minute. Seed with 5 ribs not winged. Alexanders. Ziz'ia. 8 



p Involucels minute. Fruit corky. Leaves bi-pinnatifld. Polytjb'nia. 



p Involucels none. Fruit thin. Leave-s piiinate. Parsnip. 7 hsrmk' ok. 



q Flowers white. Involucre or of 1 entire bract r 



q Flowers white. Involucre of a few cleft bracts. Parsley. Peteosbli'num. 



q Flov/ers yellow. Leaf segments very narrow and many. Fennel. Fcenic'ui,tjm. 



r Umbellets radiate. Fruit round. Lvs. finely cut. Coriander. Corian'deum. 



r Umbellets not radiate (the flowers all similar) s 



s Fruit flattened on the sides, roundi.'sh. Lf. segm. wedge-form. GeUry. A'ptum. 

 s Fruit flattened on the sides, oval. Leaf segments linoar. Caraway. Ca'eum. 

 s Fruit egg-shaped, not flattened. Leaf segments linear. Anise. Pimpiki.i/la. 



