6zS 



AMMIACEAE 



VOL. II. 



/ 



2. Washingtonia longistylis (Torr.) Britton. 



Smoother Sweet-Cicely. Anise-root. 



Fig. 3109. 



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

 Osmorrhisa longistylis DC. Prodr 4: 232. 1830. 

 W longistylis Britton in Britt. & Brown, 111. Fl. 2: 530, 

 1897- 



Similar to the preceding species but the leaflets 

 usually less deeply cleft, the stem either glabrous or 

 densely villous; styles in fruit about i" long; bracts 

 of the involucels lanceolate, 3"-4" long, persistent 



In woods, Nova Scotia to Ontario, Assiniboia, Ala- 

 bama, Tennessee, Kansas and Colorado. Ascends to 

 4200 ft. in North Carolina. Roots with a more spicy 

 taste and stronger odor of anise than those of W ' . Clay- 

 toni. Plants with stems either glabrous or densely white 

 villous are sometimes found growing together. May- 

 June. Sweet-anise, -chevril or -javril. Cicely-root. 



3. Washingtonia divaricata Britton. 

 Western Sweet-Cicely. Fig. 3110. 



Osmorrhiza divaricata Nutt. ; T. & G. Fl N. A. I : 



639. Name only. 1840 

 W. divaricata Britton in Britt & Brown, 111. Fl. 2 : 



531- 



Foliage pubescent ; stem slender, somewhat 

 pubescent or glabrous, ii-3 high, widely 

 branched above; leaf-segments thin, ovate, 

 acute, or acuminate, coarsely toothed and usu- 

 ally incised, i'-2i' long ; umbels long-peduncled, 

 3-6-rayed, the very slender rays 2'-4' long in 

 fruit ; involucels commonly none ; pedicels 

 very slender, 2"-i' long; fruit about 6" long, 

 i" wide or rather more, beaked; style and 

 stylopodium i"-ii" long, the stylopodium 

 slender-conic. 



Woodlands, Quebec to New Hampshire; Mani- 

 toba to South Dakota, British Columbia, Utah and 

 California. May-June 



4. Washingtonia obtusa Coult. & Rose. 

 Blunt-fruited Sweet-Cicely. Fig. 3111. 



Washingtonia oblusa Coult. & Rose, Contr. U. S. 

 Nat. Herb. 7: 64. 1900. 



Osmorrhiza obtusa Fernald, Rhodora 4 : 1 54. 1902. 



Glabrous or pubescent, 2^ high or less. 

 Leaf-segments ovate to lanceolate, acute or 

 acuminate, $'-2i' long; involucre none; umbels 

 3-5-rayed, the slender rays very widely spread- 

 ing, or one or two of them deflexed ; pedicels 

 widely divergent, J'-i' long in fruit ; fruit 

 6"-8" long, rounded or short-tipped at the 

 apex, the low stylopodium less than i" high. 



Woodlands, Newfoundland and Labrador to 

 New Brunswick and Quebec ; British Columbia 

 and Assiniboia to California and Arizona. May- 

 June. 



