6So FLORA. 



7-10-rayed; rays 1-5 cm. long in fruit; fruit oblong, usually slightly curved, about 

 4 mm. long, the ribs conspicuous when mature. Occasional in waste places, Newf. 

 to S. Dak., Penn. and Colo. Adventive from Europe. May-July. 



23. TAENIDIA Drude. 



A glabrous perennial herb, with 2-3-ternate leaves and compound umbels of 

 yellow flowers. Involucre and involucels none. Calyx-teeth obsolete. Stylopo- 

 dium broadly conic. Fruit oval, more or less compressed. Carpels obscurely 

 5 -angled with slender equal distant ribs; oil-tubes numerous, 2-6 in the inter- 

 vals. Seed-face flat or slightly convex. A monotypic genus. 



1. Taenidia integerrima (L.) Drude. Yellow Pimpernel. (I. F. f. 2670.) 

 Erect, somewhat glaucous, 3-9 dm. high. Leaves 2-3-ternate, the upper with 

 short dilated petioles, the lower long-petioled; segments ovate, oval, or lanceolate, 

 obtuse, or acutish and often mucronulate at the apex, entire, 1-2.5 cm. long; 

 rays 10-20 ; pedicels slender; fruit oval, about 4 mm. long. In rocky or sandy 

 soil, Quebec to N. Car., Ont., Minn., Kans. and Miss. May-June. \Pimpinella 

 integerrima A. Gray.] 



24. PIMPINELLA L. 



Perennial herbs, mostly with ternately compound leaves and white flowers in 

 compound umbels. Involucre and involucels none in our species. Stylopodium 

 broadly conic. Fruit oval to ovate, compressed. Carpel- ribs slender. Oil-tubes 

 2-6 in the intervals. About 75 species, natives of the Old World. 



I. Pimpinella Saxifraga L. Bennet. Pimpernel. (I. F. f. 2671.) Erect, 

 3-6 dm. high. Leaves pinnate; segments of the lower 9-19, sharply serrate, or 

 incised, ovate, or nearly orbicular, 1.5-2.5 cm. long; umbels 7-20-rayed; rays 

 2-4 cm. long in fruit; fruit oval. In waste places, N. Y., Penn., N. J. and Ohio. 

 Adventive from Europe. June-Oct. 



25. AEGOPODIUM L. 



Perennial herbs, with 1-2-ternate leaves, and compound umbels of white 

 flowers. Bracts of the involucre and involucels none, or rarely few and early de- 

 ciduous. Calyx-teeth obsolete. Stylopodium thick, conic. Fruit ovate- oblong, 

 glabrous, somewhat compressed. Carpels obscurely 5-angled, the ribs equal, dis- 

 tant; oil-tubes none. [Greek, goat-foot.] Two species, of Europe and Asia. 



1. AEgopodium Podagraria L. Goutweed. Goutwort. Herb-Gerard. 

 (I. F. f. 2702.) Erect, glabrous, 4-7 dm. high. Basal and lower leaves biternate, 

 the primary divisions stalked, the segments ovate, acute, or acuminate at the 

 apex, rounded, or cordate at the base, sharply serrulate, 3-8 cm. long; umbels 

 long-peduncled, 9-25-rayed; rays 2.5 cm. long in fruit or more; fruit about 4 mm. 

 long, scarcely 2 mm. wide, the styles deflected. In waste places, Mass. to Penn. 

 and Del. Adventive from Europe. June-Aug. 



26. EULOPHUS Nut*. 



Perennial glabrous herbs, with deep tubero' oots, ternately compound leaves, 

 and long-peduncled compound umbels of v .ite or pinkish flowers. Involucre 

 generally of I bract, sometimes none. Involucels of several bracts. Calyx-teeth 

 usually prominent. Stylopodium conic. Styles recurved. Fruit glabrous, linear 

 to oblong in our species; ribs filiform, with 1-5 oil-tubes in the intervals. Seed- 

 face concave. [Greek, well-plumed.] About 5 species, natives of N. Am. 



1. Eulophus Americanus Nutt. EASTERN EULOPHUS. (I. F. f. 2675.) Erect, 

 9-15 dm. high. Basal and lower leaves large, long-petioled; segments linear; 

 umbels 7-10 cm. broad, the rays 6 12. very slender. 510 cm. long; involucels of 

 narrowly lanceolate acuminate bracts; pedicels almost filiform, 8 - 16 mm. long in 

 fruit; flowers whitish (?); fruit oblong, 4-6 mm. long. In dry soil, Ohio to Kans., 

 Tenn. and Ark. July. 



27. SIUM L. 



Perennial marsh herb-, with simply pinnate stem-leaves, the lower and basal 

 ones often pinnatisected, and large umbels of white flowers. Involucre and 



