210 THE FLORA. 
a Fruit flattened. Leaves roundish. Pennywort. Wyproco’Tyte. 
a Fruit globular. Lvs. linear. Fis, pedicelled. Height 1-2’. CRANT’ZIA, 
b Fruit clothed with hooked prickles. Heads small, 2-4. ¢. Saniele. Sanic/ULA, 
b Frnit clothed with scales. Heads often near 1/ thick. W.S. ¢ Enyn’erum. 
ce Umbels not radiate (§ 255, w, outer flowers not larger than the rest)....d 
e Umb. rad., very large. Huge herbs, 4-8f. high. ¢. Cow Pursnip. Berac/LerM. 
d Leaves simple ltnear 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 
< Fruit much flattened on the back. M. 8. Archemore. ARCHEMO’RA. 
f Leaflets 3, ovate, doubly serrate. Stem 1-2f: high. Honewort. Cryprora’nta. 
f Leaflets 3, long, linear, grass-like. Rare. 8. Nerveleaf. Nevropuyy’Lum. 
f Leaflets 5-11, lanceolate or lance-linear. 2-6f. Water Parsnip. S1’0M. 
f Leaflets 5-9, oblong. Stem procumbent. S. Marsh Umbel. Hexoscrap’10M. 
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 1-2f. high. Cicely. Osmorni’za. 
h Fruits smooth, flattened on the sides, ribs wavy. Poison Hemlock. Cont’um. 
h Fruits smooth, flattened on the back, ribs winged, straight. +. ContoseLi/Num. 
h Fruit smooth, terete, not flattened, ribs straight. Lovage, Liaus’rivum. 
k Fruits bristly, short, numerous. Often cultivated. Carrot. Dav’ous. 
k Fruits smooth. Stems and leaflets thread-like. Rare. DIscoPLev’RA, 
k Fruits smooth. Stem 3-6’ erect, bulbous. W. Pepper-and-Salt, Eriennt’s. 
m Fruit flattened on the back. Stems large. ¢. Angelica. ARCHANGEL’IOA. 
m Fruit flattened on the sides....0 
m Fruit terete, not flattened. Poison. N. Rare. Fool’s Parsley. Airav’sa. 
n Calyx 5-toothed. Stems diffuse, slender. W. Cheroil. CHmropuyL’/LuM. 
n Cal. 5-toothed. Umbels stalked. Sts. erect, very slender. 8. Leprocav’1s. 
n Calyx teeth none, fruit strongly ribbed. Poison. Water Hemlrck. C1cv’ta, 
n Calyx tecth none, fruit scarcely ribbed. W. Rare. Crest Umbel. Ev’/Lopuvs. 
o Involucels leafy. Leaves perfoliate, simple, entire. Modesty, Burirv’Ru, 
e Involucels minute. Seed with 5 winged ribs. Golden Alexunders. THas’pruM. 
o Involucels minute. Seed with 5 ribs not winged. Alexanders. Z1z/th. 
p Involucels minute. Fruit corky. Leaves bi-pinnatifid. PoLyTw’/Nia. 
p Involucels none. Fruit thin. Leaves pinnate. Parsnip, Pastina’oa. 
q Flowers white. Involuere 0 or of 1 entire bract....r 
a Flowers white. Involucre ofa few cleft bracts. Parsley, PetrosEiy’NuM. 
q Flowers yellow. Jeaf segments very narrow and many. Fennel. Fanio’/uLum. 
r Umbellets radiate. Fruit round. Lvs. finely cut. Coriander. Cortan’/pRrUM. 
r Umbellets not radiate (the flowers all similar)....s 
s Fruit, flattened on the sides, roundish. Lf. segm. wedge-form. Célery, A’PrUM. 
s Fruit flattened on tho sides, oval. Leaf segments linoar, Caraway. Ca’RUM. 
s Fruit egg-shaped, not flattened. Leaf segments linear, Anise. PincernEL’La. 
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