267 



in simple or nearly simple umbels: ex- 

 teeth prominent: fr flattened laterally: 

 primary ribs 5, filiform, bristly; secon- 

 dary ribs 4, prominent, winged, bearing 

 barbed or hooked prickles: oil tubes 1 

 under secondary ribs, 2 on the com- 

 missural side. 

 CAUCALIS MICROCARPA H. & A. 



Erect, slender, 6-9' hi; Ivs 2-3 times 

 ternate and much dissected, slightly 

 hispid; ped solitary at ends of branches 

 or in clusters of 2 or 3 at upper nodes, 

 1-2' long, bearing unequally rayed um- 

 bels: rays 3-6, 8" long or less; inv of 

 foliaceous dissected bracts; involucels of 

 entire or somewhat divided bractlets; fr 

 oblong, 2" long, armed with rows of 

 hooked prickles. 



Abrams, Fl LA 282. 



Wash to Baja; Arizona. 

 CAUCALIS NODOSA Hudson. 



Knotted Hedge Parsley. Umbels sm 

 and condensed, scattered along the 

 sts opp the Ivs, on ped 1-2" long. Eu. 



McClatchie, Erythea 2J.23, Pasadena. 



Abrams, Fl LA 282. 



Genus CICUTA Linnaeus. 



Tall branching glabrous per growing 

 in marshes or by streams: rt-stocks 

 short and erect, or horizontal and 

 branching: Ivs pinnately or tenately 

 compound: fls w in compound umbels: 

 ex-teeth somewhat prominent: inv pres- 

 ent or 0: involucels of sm bractlets: fr 

 oblong to orbicular, glabrous: ribs corky, 

 broad but low, the lateral in cross-sec- 

 tion evidently larger than the interme- 

 diate and dorsal: oil-tubes 2 on the face, 

 1 in the intervals. Water Hemlock. 

 CICUTA BOJOANDERI S. Wats. 



A tall and conspicuous plant: rt-stock 

 nearly or quite vertical; st branched 

 above, 6-10 hi, with large radical and 

 cauline bipinnate Ivs 2 long or less; 

 Ifts lanceolate, serrate, 2' long; bracts 

 and bractlets lanceolate, the former oft- 

 en scarious-margined; rays 1%' long, 

 subequal, pedicels 2" long; fr orbicular, 

 2" long, prominently ribbed, the quite 

 mature carpels rather strongly concave 

 on the face, thus appearing somewhat 

 lunate; oil-tubes broad, depressed in the 

 channeled sd. 



Davidson, PI LA Co 7. 

 CJCUTA MACULATA Linn. 

 SBer (Parish 975). Through the U. S. 

 CICUTA OCCIDENTALIS Greene. 



Stout, 9-18 dm hi: rt-stock short, giv- 

 kig rise to slender rts above and a fas- 

 cicle of thick and elongated rts below: 

 Ivs twice pinnate: Ifts firm linear-lan- 

 ceolate to lanceolate, 5-8 cm long, sharp- 

 ly serrate and conspicuously reticulate 

 beneath: fr oblong, 3 mm long, con- 

 stricted at the commissure, the ribs ap- 

 parently equal, but laterals largest in 

 section, intervals broad: oil-tubes large. 



Abrams, Fl LA 2o5. Frequent in 

 marches toward the coast. 



Genus CONIUM Linnaeus. 



Poisonous bien, with spotted sts, large 

 decompound Ivs with lanceolate pinna- 

 tifid ifts, inv and involucels of narrow 

 bracts, and w fls. Poison Hemlock. 

 CONIUM MACULATUM Linn. 



A large branching herb, in waste 

 places, widely distributed. Eu. 



268 



McClatchie, Erythea 2:123, Pasadena. 



Abrams, Fl LA 283. 



Cruz (Greene). Naturalized. 



Genus DAUCUS Tournefort. 



Bristly or hispid ann or bien with dis- 

 sected decompound Ivs and w fls: um- 

 bels compound, concave, surrounded by 

 cleft foliaceous bracts and borne on 

 long peel: involucels of entire or toothed 

 bractlets: ex-teeth obsolete: fr some- 

 what flattened dorsally: primary ribs 

 slender, bristly; secondary ribs 'with a 

 single row of prominent barbed prickles: 

 oil-tubes 1 under the secondary ribs, 2 

 on the commissural side. 

 DAUCUS IUSILLUS Michx. 



Rattlesnake weed: 4-7' hi; sts and ped 

 retrorsely hispid; Ivs finely dissected 

 into linear seg; rays mostly 2-5" long, 

 sometimes as much as 1-1%' long, 

 somewhat unequal: pedicels very un- 

 equal, 1-2 " long or almost wanting; fr 

 IVz--" long. Yerba del Vibora of the 

 Spanish-Calif ornians. 



Abrams, Fl LA 292. 

 DAUCUS CAROTA L. 



Carrot. Bien rt fleshy, conical; sts 

 erect, branching, 2-3 hi. commonly 

 smooth; Ivs many times dissected into 

 sm linear or lanceolate seg; seg of inv 

 linear-lanceolate or subulate; rays very 

 num. 1-2' long; umbels in fr 2-4' broad, 

 concave and like a bird's nest; fr 2" long. 

 Garden escape, sparingly naturalized in 

 LA Co, to Alameda, Gal. 



Abrams. Fl LA 292. 



Davidson, PI LA Co 7. 



Genus FOENICTJLUM Adans. 

 * Stout glabrous per with dark g aro- 

 matic herbage: Ivs decompound, dissect- 

 ed into num filiform seg: fls y, in large 

 compound umbels: inv and involucels 0; 

 ex-teeth obsolete: fr oblong: ribs prom- 

 inent: oil-tubes 1 in the intervals, 2 on 

 the commissural side. 

 FOENICULUM VULGARE Gaertn. 



Davidson, Erythea 1:59, LA Co. PI 

 LA Co 6. 



Parish, Zoe 1:10. 



See Foeniculum foeniculum. 



Fennel; Europe; LA (Hasse). 

 POENICULUM POEWICUI.UM Karst. 



Per branched, 7-20 dm hi; Ivs very 

 finely dissected into capillary seg; peti- 

 oles broad, clasping; umbels large, 9-25 

 rayed; rays glaucous, 2.5-7.5 cm long, in 

 fr; pedicels 2-8 mm long, slender; fr 

 about 6 mm long. Eu. Sweet FenneL 



Abrams, Fl LA 288. 



Foeniculum vulgare Goertn. 



Genus OENANTHE Linnaeus. 



Aquatic glabrous herbs with succulent 

 st from thick rt-stock: Ivs pinnately 

 compound: fls w in compound umbels, 

 terminating the branches: inv present or 

 (): involucels present: ex-teeth rather 

 prominent: sty slender, at length elon- 

 gated: fr globose-ovate, cylindric or 

 slightly flattened laterally: ribs broad, 

 obtuse, corky; commissural face also 

 corky: oil tubes 1 in the intervals, 2 on 

 the face, sd furrowed beneath them. 

 OEXANTHE CALIFORNICA S. Watson, 



Jepson, Erythea 1:13. 



Erect. 2-4 hi; Ivs bipinnate; Ifts 

 elliptic-ovate in outline, 3-cleft or-part- 



