ORDER G3. UMBELWORTS. 



a Fruit flattened. Leaves roundish. Pennywort. HVDKOCO'TYLK. 



a Fruit globular. Lvs. linear. Fls. pedicelled. Heiglit 1-2'. r. CRANT'ZIA. 

 b Fruit clothed with hooked prickles. Heads small, 2-4. c. Sanicle. SANIO'CLA. l 

 b Fruit clothed with scales. Heads often near 1' thick. W. S. c. ERYN'GICM. 



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



c limb. rad. very large. IIugeheft>s, 4-8f. high. c. Cow Parsnip. HERAC'LEUM. 

 d Leaves simple linear petioles without blades. S. TIEDMAN'NIA. 



d Leaves only ouce 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. Archemore. ARCHKMO'RA. 



f Leaflets 3, ovate, doubly serrate. Stem l-2f. high. Honewort. CRYPTOT^'NIA. 9 

 f Leaflets 3, long, linear, grass-like. Rare. S. Nerceleaf. NEUROPHYL'LCM. 



f Leaflets 5-11, lanceolate or lance-linear. 2-6f. Water Parsnip. SI'UM. 



f Leaflets 5-9, oblong. Stem procumbent. S. Marsh Umbel. HKLOSCIAD'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. OSMORHI'ZA. 3 



h Fruits smooth, flattened on the sides, ribs wavy. Poixon Hemlock. CONI'UM. 4 

 h Fruits smooth, flattened on the back, ribs winged, straight, r. CONIOSKLI'NUM. 

 h Fruit smooth, terete, not flattened, ribs straight. Lovage. LIGUS'TICOM. 



k Fruits bristly, short, numerous. Often cultivated. Carrol. DAU'CUS. 



k Fruits smooth. Stems and leaflets thread-like. Rare. DISCOPLEU'RA. 



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

 m Fruit flattened on the back. Steins large, c. Angelica. ARCHANGEL'ICA. 



m Fruit flattened on the sides. . . .n 

 m Fruit terete, not flattened. Poison. N. Rare. Fool's Parsley. JJtHu'sA. 



n Calyx 5-toothed. Stems diffuse, slender. W. Chervil. CH^ROPHYL'LCM. 



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. Rare. Crest Umbel. EU'LOPHUS. 

 o Involucels leafy. Leaves perforate, simple, entire. Modesty. BUPLEU'RCM. 

 Involueelfl 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. POLYT^'NIA. 



p Involucels none. Fruit thin. Leaves pinnate. Parsnip. PASTINA'OA. 



q Flowers white. Involucre or of 1 entire bract r 



q Flowers white. Involucre of a few cleft bracts. Parsley. PETROSELI'NUM. 



Flowers yellow. Leaf segments very narrow and many. Fennel. FOZNIC'CLDM. 



r Umbellets radiate. Fruit round. Lvs. finely cut. Coriander. CORIAN'DRCM. 



r Umbellets not radiate (the flowers all similar). . . .& 



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



s Fruit flattened on the sides, oval. Leaf segments linear. Caraway. CA'RUM. 



Fruit egg-shaped, not flattened. Loaf segments linear. Anise. PIUPINBI/LA. 



