OaoKB 63.— UMBELtilFERjB. 335 



ovato-renifpvm. — If Rt. tuberous. Radical If. triternatoly decompound. 



Involucrate Ivs. solitary, biternately compound. Involucels of 3 to 6 



entire, linear-spatulate bracts. 



E. bulbosa TSutt A small, early-flowering herb, shady banks, "Western K T. 

 to Ohio and Mo. Plant 4 to 6' high, from a round tuber deep in the ground, 

 with 2 to 4 Iva., the lower one radical, numerously divided, the divisions inoisely 

 cleft into narrow segments; the upper ones bract-lilte, similarly divided, each 

 subtending a 3-rayed umbel of white fls, with dark purple or brownish anthers 

 (hence the odd popular name). March, Apr. 



23. EU^LOPHUS, Nutt. (Gr. ev, true, Xocfiog, crest ; application not ap- 

 parent.) Calyx limb 5-tootlied, deciduous; petals obovate, emarginate, 

 with a long inflexed point; fruit contracted laterally, somewhat double ; 

 carpels surrounded with -large vittae, 4 in the commissure, ribs obsolete ; 

 seed channelled on the iunur face. — 2^ Tall, slender, smooth, with dis- 

 sected Ivs. Invol. nearly 0. Involiieel setaceous. — ^Fls. white. 



E. Americana Nutt. Near Columbus, Ohio (Sullivant), to Tenn. St. round, 

 striate, 3 to ,4f high. Lvs. biternately divided, the segm. lance-linear, 1' long, 

 acute ; upper lvs. of 3 long, entire segm. Umbels long-stalked, 8 or lO-rayed. 

 Fr. as large as caraway. Jl. 



24. CONrUffl, L. Poison Hemlock. (Gr. icuvslov, hemlock, from 

 Kuvog, a top ; because it causes dizziness.) Calyx margin obsolete ; pet- 

 als obcordate, with an acute, inflected point ; fruit ovate, laterally com- 

 pressed ; carpels with 5, acute, equal, undulate-crenulate ribs, lateral 

 ones marginal ; intervals without vitta; ; seeds with a deep, narrow 

 groove on the face. — ® Poisonous herbs. Lvs. decompound. Invol. 

 and involucels 3 to 6-leaved, the latter unilateral. Fls. white. 



C. inaoulatum L. St. spotted ; lvs. tripinnate ; Ifts. lanceolate, pinnatifid ; fr. 

 smooth. — Grows in waste grounds, way-sides. A well known poisonous plant. 

 St. much branched, about 4f high, very smooth, round, hollow, with purphsh 

 spots. The lower lvs. are very large, several times pihn^te, bright green, on long, 

 sheathing footstalks. Umbels terminal, the invol. of 6 to 8 lanceolate bracts, the 

 involucels with the Inner half wanting. Fls. small, white. Fr. with undulate or 

 wrinkled ribs; A powerful narcotic, exhaJing a disagreeable odor when bruised. 

 Used in medicine. Jl., Aug. § Eur. 



25. CICUTA, L. Water Hemlock. (A Latin name used by Vir- 

 gil (Eol. 2d and 5th), but of unknown application.) Calyx margin of 5 

 broad segments ; petals obcordate, the points inflected ; fruit subglo- 

 bous, didymous ; carpels with 5 flattish, equal ribs, 2 of them marginal ; 

 intervals filled with single vittse, commissure with 2 vittae ; carpophore 

 2-parted ; seeds terete. — 2f Aquatic poisonous herbs. Leaves com- 

 pound. Stems hollow. Umbels perfect. Invol. few leaved or 0. In- 

 volucels many leaved. Flowers white. 



1 C. maculata L. St. streaked with purple ; lower lvs. triternate and quinate ; 

 upper biternate ; segments lanceolate, mucrouately serrate ; umbels terminal and 

 axillary. — Common in wet meadows, U. S. and Can. St. 3 — 6f high, smooth, 

 striate, jointed, hollow, glaucous, branched above. Lfts. or segm. 1 — 3' long, J — 

 f ' wide, finely serrate, the veins mostly running to the notches, rarely to the 

 points ; umbels rather numerous, naked, 2 — i' broad. Involucels of 5 — 6 short 

 narrow, acute bracts. Fr. .1-J" diam., 10-ribbed, crowned with the permanent 

 calyx and styles. Jl., Aug.-^Tie thick, fleshy root is a dangerous poison, but 

 sometimes used in medicine. 



2 C. bulbffera L. Axils of the hranches IvXbiferom ; lvs. biternately divided; Ifls. 

 linear, with remote, divergent teeth ; umbels terminal and axillary. — In wet mea- 

 dows, Penn. to Can. Stem 3 — 4f high, round, striate, hollow, green, branching. 



25 



