136 ORDER 63. UMBELLIFER/E. 



2 E. Baldwin!! Spr. Sts. prostrate, filiform ; rt. Ivs. wedge-oblong, st.lvs. 3-parted, 



segm. lance-liD., cut-toothed ; iuvol. -scales arid chaff alike : hds. oblong. Fla. l(y. Blue. 



3 E. prostratum Baldw. Sts. prostrate, filiform, rooting ; Ivs. of two forms at the 



same node, small, some ovate, some 3-parted with lance-linear segm. ; invol. scales 



linear, longer than the small oblong heads ; fls. blue. it Swamps, Ga. Fla. 6-12'. Jn. + 



/3. foltosum. Bracts of the invol. leafy, twice longer than the heads. Fla. La. 



4 E. aroimiticum Baldw. Sts. assurgent ; vs. short (10, pinnate, with cuspidate 



segm., the 3 terminal largest ; hds. globous (6 S") ; invol. scales 5. Dry. Fla. 9 IS^ 



5 E. iHettauer!. Erect, tall ; Ivs. linear-terete, consisting chiefly of the fistuloue, 



jointed midvein, barely winged and toothed ; bracts 810, leafy. Wet. Fla. 4 6f. 



6 E. Virginlantim Lam. Erect; Ivs. lance-oblong to linear, flat, the lower long- 



stalked, upper uncinate-serrate ; bratts longer than the roundish head. y. Swamps. 

 2 4f. Hds. in umbel-like cymes, numerous, 5 6". Varies with Ivs. all linear. Jl. Aug. 



7 E. virgatum Lam. Erect; Ivs. oval or oblong, thin, petiolate, dentate, the upper 



Bessile ; bracts 68, longer than the depressed, cymous heads, if Wet, S. 2 4f. 



5. HERACLEUM, L. Cow PARSNIP. Calyx 5-toothed. Pet. often 

 radiant in the exterior flowers, and apparently deeply 2-cleft. Fruit com- 

 pressed, flat, "with a broad, flat margin, and 3 obtuse, dorsal ribs to each 

 carpel ; intervals with single vitta3. Seeds flat, y Stout, with large um- 

 bels. Involucre deciduous. Involucels many-leaved. 



H. I a iiii t ii m L. Villous ; Ivs. ternate, petiolate, tomentous beneath ; Ifts. petioled, 

 round-cordate, lobed ; fr. orbicular. Can. to N. Car. and W. 4f. Lvs. very large. June. 



6. FOIiYTJENIA, DC. Calyx 5-toothed. Fruit oval, glabrous, com- 

 pressed on the back, withla thickened, corky margin. Commissure with 4 

 to 6 vittae. Seeds plano-convex, n A. smooth herb, with bipinnately- 

 divided leaves. Involucre 0. Involucel of setaceous bracts. 



P. NnUalli! DC. Prairies, W. 2 3f. Smoothish. Lower leaves long-stalked. Um 

 betas'. FruitS". May. 



7. PEUCEDANUM, L. Fruit ovate, oval, or roundish, compressed 

 on the back, the margin acute or broadly winged, carpels plane or convex, 

 intervals with single vittae. Seeds plano-convex, if. @ Smooth, rarely 

 pubescent Lvs. pinnately or ternately divided or decompound. Umbels 

 compound, with or without involucra. Fls. yellow or white. Fig. 238. 



$ EUFEUCEDANUM. Cal. 5-toothed. Lvs. pinnatisect. Fr. narrowly winged. Yellow.. .1, 2 

 ARCHEMORA. Cal. 5-toothed. Lfts.l 11, narrow. Fr. narrowly winged. Fls. white. 3-5 

 PASTINACA. Calyx teeth 0. Lfts. oval. Fruit broadly winged. Flowers yellow No. 6 



1 P. frciiiculaceiiiu N. and other species with radical, pinnatisect leaves grow in 



Kansas, and W. (Rev. J. H. Carruth.) 



2 P. GRAVEOLEN8. Dill. Lvs. cauline, tripinnate; seg. capillary; umb. on long stalks; fr. 



oval, flat, brown, aromatic, pun-gent, medicinal. Spain. 2f. (Anethum, C-B.) 



3 P. rigidum Cowbane. St. rigid, striate ; Ivs. pinnate ; Ifts. 3 11, lance-ovate, sub 



entire ; umb. 2 or 3, spreading, with slender rays ; fr. with large purp. vittae. il Swamps, 

 N.Y.,W. andS. 2 5f. August. 

 /3. ambiffua^ has the leaflets linear and entire. 



4 P. tcriiatum. Stem slender, smooth; Ivs. on long petioles, ternate ; segm. very 



long, linear, entire, 3-veined ; invol. 0-3-leaved ; involucel 4-6-leaved. Swamps, in 

 pine-barrens, S. 2 3f. Sept. Nov. (Neurophyllum long! folium, C-B.) 

 6 P. teretifoliuni. Tall, slender, smooth ; Ivs. reduced to fistular, jointed phyllodia, 

 terete tapering, G 1C' long; fr. 3 // ; invol. 5-6-leaved. V Wet, S. (Tiedmannia, C-B.) 



