530 



UMBELLIFERAE. 



[Voi,. II. 



2. Chaerophyllum Teinturieri Hook. Teinturier's Chervil. (Fig. 2679.) 



Chaerophyllum Teinturieri Hook. Comp. Bot. Mag. i: 



47- 1835- 



Chaerophyllum procumbensvzr. Teinturieri C. & R. Bot. 

 Gaz. la: 160. 1887. 



Similar to the preceding species, more or less pu- 

 bescent, much branched, often taller. Ultimate leaf- 

 segments acute or obtuse; rays of the umbels I '-3' 

 long; fruit 3 // -4 // long, less than i" wide, glabrous, 

 or pubescent, narrowed above into a distinct beak, its 

 prominent ribs as broad as the intervals between them, 

 or broader. 



In dry soil, southern Virginia to Tennessee and Mis- 

 souri, south to Florida and Texas. Perhaps intergrades 

 with the preceding species. March-May. 



29. WASHINGTONIA Raf. Am. Month. 

 Mag. 2: 176. 1818. 



[OSMORRHIZA Raf. loc. cit. iSlS.] 



Perennial herbs from fleshy clustered thickish roots, 

 with decompound leaves, and loose few-rayed umbels 

 of white flowers. Involucre and involuccls of few narrow bracts, or none. Calyx-teeth ob- 

 solete. Petals incurved at the apex. Stylopodium small, conic. Fruit narrow, linear or 

 oblong-linear, short-beaked, compressed, more or less bristly along the ribs, attenuated at 

 the base. Carpels 5-angular, slightly flattened dorsally, the ribs acute and nearly equal; 

 oil-tubes obsolete or none. [In honor of George Washington.] 



About 15 species, natives of North America, eastern Asia and western South America. Besides 

 the following about 8 others occur on the west coast and in the Rocky Mountains. 

 Pubescent; style and Stylopodium ]?" long or less. 



Style with stylopodmm K" long; involucel-bracts mostly present i. W. Claytoni. 



Stylopodium X" long; involucel-bracts few or none. 3. W.divaricaia. 



Glabrate; style and Stylopodium i" long. 2. W. longistylis. 



i. Washingtonia Clayton! (Michx.) Britton. 



(Fig. 2680.) 



Myrrhis Claytoni Michx. Fl. Bor. Am. i: 170. 1803. 



Osmorrhiza brevistylis DC. Prodr. 4: 232. 1830. 



O. Claytoni Clarke in Hook. f. Fl. Brit. Ind. 3: 690. 1879. 



Erect, rather stout, at length widely branched 

 above, iX-3 high, villous- pubescent throughout, 

 especially when young. Lower leaves long-petioled, 

 large, sometimes i wide, ternately decompound, the 

 segments ovate or oval, incised-dentate; upper leaves 

 nearly sessile, less compound; umbels long-peduncled, 

 2-6-rayed; rays divaricate, i'-2' long in fruit; involu- 

 cels of several subulate bracts; pedicels 3"-8" long; 

 fruit about 6" long, about i" wide; style and stylo- 

 podium %" long, the Stylopodium slender-conic. 



In woods, Nova Scotia to Minnesota, North Carolina, Illi- 

 nois and Nebraska. Ascends 4000 ft. in Virginia, May-June. 



Woolly Sweet-Cicely. 



2. Washingtonia longistylis (Torr.) 



Britton. Smoother Sweet-Cicely. 



(Fig. 2681.) 



Myrrhis longistylis Torr. Fl. U. S. 310. 1824. 

 Osmorrhiza longistylis DC. Prodr. 4: 232. 1830. 



Similar to the preceding species but only 

 slightly pubescent, the stems and petioles at 

 length quite glabrous; styles in fruit about i" 

 long; bracts of the involucels lanceolate, $"-4," 

 long, persistent. 



In woods, Nova Scotia to Ontario, the Northwest 

 Territory and Dakota, south to Alabama, Tennessee 

 and Kansas. Ascends to 4200 ft. in North Carolina. 

 Roots with a more spicy taste and stronger odor of 

 anise than those of }v. Claytoni. May-June. 



