140 ORDER 63. UMBELLIFER^E. 



8. Canadense B. & H. Petioles large, sheath-like, inflated ; If. eegm. linear-oblong, 

 very acute, or acuminate ; nrab. 12-rayed, long-stalked ; bracts lin.-filiform ; fls. white, 

 conspicuous. Wet woods, Me. to Va. and Wis., rare. 3-5f. Aug., Sept. (Couioselinum.i 



22. LIGUSTICUM, L. LOYAGE. Calyx teeth minute. Fruit as in 

 Selinum, except that the intervals are filled with numerous vittse. 11 Gla- 

 brous. Lvs. ternately divided. Involucra few- oo-bracted. Fls. white. 



1 lit Scoticum L. Sea L. Lvs. 2-1-ternate ; Ifts. rhombic-ovate, cut-dentate, some 



oblique ; invol. bracts GO-linear ; 1'r. oblong. Sea-coast, northward. 2f. Fruit 5". July. 



2 li. actae folium Ms. Angelica, Lvs. triternate, with ovate, dent-serrate leaflets ; 



umbels panicled or triply compound ; involucra about 3-bracted ; fruit short. Woods, 

 Ms. to Tenn. 3 6f. May July. 



23. JETHUSA, L. FOOL'S PARSLEY. Calyx margin obsolete. Fruit 

 globous-ovate. Carpels with 5 acutely-carinated ribs, lateral ones mar- 

 ginal, broader. Intervals acutely angled, with single vitta?, commissure 

 with 2. (D Poisonous herbs. Leaves ternately or pinnately decompound. 

 Involucra 0. Involucels one-sided, 3-leaved, deflexed. Flowers white. 



JE. Cynapinm L. Waste grounds, N. Eng. to Penn. : rare. 2f. Stem green. Leaf 

 feegm. numerous, wedge-shaped, uniform. Plant ill-scented, dark green. Jl. Ear. 



24. ERIGENIA, Nutt. DAUGHTER-OF- SPRING. Calyx limb obsolete. 

 Pet. not inflexed, entire. Fr. contracted at the commissure. Carpels 8- 

 ribbed, ovate-reniform. n Rt. tuberous. Radical leaf triternately decom- 

 pound. Involucrate Ivs. solitaiy, biternately compound. Involucels of 

 36 entire, linear-spatulate bracts. Figs. 235, 369. 



E. bnlbosa Nntt. A small, early-flowering herb. 46'. Shady banks, Penn.,W. N.Y. 

 and W. Tuber roundish, deep in the ground. Pet. white, anth. brown-purple (henc 

 called Pepper-and-Salt). March, April. 



25. APIUM, L. CELERY, &c. Calyx teeth obsolete. Pet. not emar- 

 ginate. Fr. ovate or globular, laterally compressed, often didymous. Car- 

 pels 5-angled, ribs equal, obtuse. Vittae single in each interval. Carpophore 

 undivided. Seed terete. (T) if. Smooth. Leaves pinnately decompound. 

 Involucra various. (Flowers white.) 



HELOSCIADIUM. Lvs. simply pinnate. Involucels CO-bracted. Fr. roundish.. Nos. 18 

 EUAPIUM. Lvs. pinuately decompound. Involucels 0. Involucre 1-leaved.. .Nos. 4 6 



1 A. lineare. Stem angular, tall ; Ifts. 911 (3 above), linear-oblong or linear, taper- 



ing to a very acute point, serrate ; umb. pedunculate ; invol. 00-bracted ; fr. globular 

 with very prominent ribs, n Wet. 2 4f. July, Aug. ;Sium, C-B.) 



2 A. Carsbnii (Durand). Erect, branched ; Ifts. 3 7, lin. to ovate, serrate to gashed 



fr. broadly ovate, the ribe filiform, with broad intervals. Wet. Coim. toPeua. Jn.,Jl. 



3 A. nodiflorum. Steins procumbent ; Ivs. pinnate ; Ifts. lance-oblong, equally ser- 



rate ; umb. opposite the Ivs., subsessile; invol. 0-2-lvd. Wet. S. Car. 1 2f. Apr. { 



4 A. leptopliyllum. Erect or diffuse; If. segm. linear to filiform ; umb. opp. the 



Ivs., sessile; fr. very small d"), globular, with thick ribs. Ga. to La. Jn. (Hclosc.) 



5 A. divarlcutum. Small and slender; If. segm. filiform or capillary, obtuse ; umb. 



very small, pedunculate, 3-5-rayed ; fr. rough with minute scales. Dry sands, S. 

 2-8'. March, April. (Leptocaulie, N.) 



t> A. UUAVEOLENS. Celery. Lvs. on long petioles, segm. broad-cuneate, incised, upper 

 Ivs. 3-parted and cut-lobed ; invol. ; fr. roundish, (a) Eur. Well known as a salad. 



