trMBp:;LLiFEUAE (pAlisLEiT family) 



6id 



1. C. actaeifblium (Miolix.) Coult. & Rose. Stem 3-12 dm. 

 high ; leaflets ovate, irregularly cut-serrate, 5-7 cm. long ; fruit 

 4-7 umi. long. (C. Omelini of auth., not Ledeb.') — Rooky coasts, 

 Mass. to Greeni. Fig. 835. 



32. CYM6pTERUS Raf. 



Calyx-teeth more or less prominent. Fruit usually globose, with 

 all the ribs conspicuously winged ; oil-tubes 1-several in the inter- 

 vals, 2-8 on the commissure. Stylopodium depressed. Seed-face 

 slightly concave. — Mostly low (often cespitose) glabrous peren- 

 nials, from a thick elongated root, with more or less pinnately 

 compound leaves, with or without an involucre, prominent involu- 

 cels, and white flowers (in ours). (From Kv/ia, a wave, and 

 irrepbi/, a wing, referring to the often undulate wings.) 



]. C. acaulis (Pursh) Rydb. Low (1-2 dm. high), with a short 

 erect oaudex bearing leaves and peduncles at the summit, glabrous 

 rays and pedicels very short, making a compact cluster ; involucre none ; involU' 

 eel of a single palmately 5-7-parted bractlet ; fruit globose, 6-8 mm. in diameter 

 wings rather corky; oil-tubes 4-5 in the intervals. (C. glomeratus Raf.) - 

 Minn, to la., Ark., and westw. 



33. THASPIUM Nutt. Meadow Paksnip 



Calyx-teeth conspicuous. Fruit ovoid to oblong, slightly flattened dorsally ; 

 carpel with 3 or 4 or all the ribs strongly winged ; oil-tubes solitary in the 

 intervals, 2 on th^ commissure. Stylopodium wanting; styles long. — Peren- 

 nials, with ternately divided leaves (or the lower simple) and 

 broad serrate or toothed leaflets, mostly yellow flowers, and 

 all the fruit pediceled. (Name a play upon Thapsia, so called 

 from the island of Thapsus.) 



1. T. aureum Nutt. Glabrous; root-leaves mostly cordate, 

 serrate; stem-leaves simply ternate (rarely biternate); leaflets 

 ovate to lanceolate, round or tapering at base, serrate ; flowers 

 deep yellow ; fruit globose-ovoid, about 4 mm. long, all the ribs 

 equally winged. — Thickets and woodlands, n. O. to Md., Ga., 

 Ark., and Wyo. — Fl. summer. Fig. 836. 



Var. atropurpureum (Desr.) Coult. & Rose. Petals dark- 

 purple. — N. J. to Ga. and 111. 



2. T. barbindde (Michx.) Nutt. Loosely branched, pubes- 

 cent on the joints, sometimes puberulent in the umbels ; leaves 

 IS-ternate ; leaflets ovate to lanceolate, acute, with cuneate 

 base, coarsely cut-serrate, often ternately cleft or parted ; 

 flowers light yellow; fruit broadly oblong, about 6 mm. long 

 and 4 mm. broad, loith mostly 7 prominent winflis. — Banks of 

 streams, N. Y. to Minn., and southw. May-June. Var. an- 

 GUSTiF6i.inM Coult. & Rose, has narrower more sharply cut 

 leaflets, and fruit more or less puberuleijt. — Pa. to Pt. Pelee, 

 Ont., and 111. 



3. T. pinnatifidum (Buckley) Gray. Resembling the last, hnt ptiberulent on 

 the branchlets, umbels, and fruit, with fewer leaves; leaflets \-2-pinnatifld, the 

 lobes linear or oblong ; one or two leaves near the base often very large and long- 

 petioled ; flowers light yellow ; fruit oblong, 3-5 mm. long and 2-3 mm. broad, 

 all the ribs winged, generally three of them narrowly so. — Barrens and mts., 

 Ky. to Tenn. and N. C. 



34. LOMAtIUM Raf. 



Fruit flattened dorsally, oblong to nearly orbicular, laterally winged ; oil- 

 tubes usually many. Roots fusiform. Leaves dissected. Involucre none. — 



T. aureum. 

 Fruit x i. 

 Cross-section of 

 fruit X 5. 



