210 THE FLORA. 



a Fruit flattened. Leaves roundish. Pennywort. Hydkoco'tyle. -. 



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

 b Fruit clothed with hooked prickles. Heads small, 2-4. c. Sanicle. Sanic'ula. 1 

 b Fruit clothed with scales. Heads often near V thick. "W. S. c. Eryn'oidm. 



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



c Umb. rad., very large. Huge herbs, 4-Sf. high. c. Cow Parsnip. JIkuxc'l-ev^. 

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



d Leaves only once divided, pinnately or ternately . . . .e 

 d Leaves twice or thrice compounded g 



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



e Fruit much flattened on the back. M. S. ArcJiemore. Archemo'ra. 



f Leaflets 3, ovate, doubly serrate. Stem l-2f. high. Honewort. Ckyptot^'nia. 2 

 f Leaflets 3, long, linear, grass-like. Eare. S. KerveUaf. Neurophyl'lum. 



f Leaflets 5-11, lanceolate or lancc-linear. 2-6f. Water Parsnip. Si'um. 



f Leaflets 5-9, oblong. Stem procumbent. S. Marsh Umbel. Helosciad'ium. 



g 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. Osmoriii''za. 3 



h Fruits smooth, flattened on the sides, ribs wavy. Poison Hemlock. Coni'um. 4 

 h Fruits smooth, flattened on the back, ribs winged, straight, r. CoNiosELi''NrM. 

 h Fruit smooth, terete, not flattened, ribs straight. Lavage. Ligus'ticum. 



k Fruits bristly, short, numerous. Often cultivated. Carrot. Dau'cus. 



k Fruits smooth. Stems and leaflets thread-like. Eare. Discopleu'ra. 



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

 m Fruit flattened on the back. Stems large, c. Angelica. Archangel'ica. 



m Fruit flattened on the sides n 



in Fruit terete, not flattened. Poison. N. Eare. FooVs Parsley, ^thu'sa. 



n Calyx 5-toothed. Stems difl"use, slender. "W". Chervil. Ch^rophyl'lum. 



n Cal. 5-toothed. Umbels stalked. Sts. erect, very slender. S. Leptocau'lis. 



n Calyx teeth none, fruit strongly ribbed. Poison. Water Hemlock. Cicu'ta. 6 



n Calyx teeth none, fruit scarcely ribbed. W. Eare. Crest Umbel. Eu''lophus. 

 o Livolucels leafy. Leaves perfoliate, simple, entire. Modesty. Buplec'ritm. 



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

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



p Involucels minute. Fruit corky. Leaves bi-pinnatifid. Polytje'nia. -^ 



p Involucels none. Fruit thin. Leaves pinnate. Parsnip. Pastixa'ca. 



q Flowers white. Involucre or of 1 entire bract r 



q Flowers white. Involucre of a few cleft bracts. Parsley. PETR0SELi''NnM:. 



q Flov/ers yellow. Leaf segments very narrow and many. Fennel. FosMC'uLnu:. 



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



r Umbellets not radiate (the flowers all similar) s 



s Fruit flattened on the sides, roundish. Lf. segin. wedge-form. Celery. A'picir. 

 s Fruit flattened on the sides, oval. Leaf segments linear. Caraway. Ca-'rum. . 

 s Fruit egg-shaped, not flattened. Loaf segments linear. Anise. Pjmpinrl'la. 



