Osmorhiza 



Umbelliferae 



719 



50 



Map 1525 



Osmorhiza longistylis (Torr.l DC 



o 50 



Map 1526 

 Osmorhiza longistylis 

 var villicaulis Fern. 



attacked by a rust but the variety was free from it. Another location is in 

 Switzerland County on the wooded flood plain of a small creek about a mile 

 and a half northwest of Vevay. 

 Pa. to Va., westw. to Ind. and Ky. 



2. Chaerophyllum Tainturieri Hook. Map 1523. Abundant along the 

 L. & N. Railroad about 6 miles west of Solitude in Posey County. At this 

 place the railroad runs along the base of Brewer Hill in the alluvial flood 

 plain of the Wabash River. 



Va. to Mo., southw. to the Gulf. 



5941. OSMORHIZA Raf. 



Stylopodium and style 0.8-1.5 mm long, not longer than the expanded petals, recurved 



in flower, becoming straight and erect when mature 1. 0. Claytoni. 



Stylopodium and style 3-4 mm long, longer than the expanded petals, usually divergent 

 when mature. 



Stems glabrous or the upper part with some pubescence 2. 0. longistylis. 



Stems villous with hairs about 1-2 mm long 2a. 0. longistylis var. villicaulis. 



Stems puberulent with hairs mostly about 0.5 mm long 



2b. O. longistylis var. brachycoma. 



1. Osmorhiza Claytoni (Michx.) Clarke. (Washingtonia Claytoni 

 (Michx.) Britt.) Sweet Cicely. Map 1524. Frequent throughout the 

 state except in the southwestern counties. In moist or dry woods of all 

 kinds except in very sandy places. 



The stems are usually more or less villous but sometimes nearly glabrous. 

 E. Que. and N. S. to S. Dak., southw. to N. C, Ala., to Mo., and Kans. 



2. Osmorhiza longistylis (Torr.) DC. (Washingtonia longistylis (Torr.) 

 Britt.) Sweet Anise. Map 1525. Infrequent in moist or dry woods and 

 probably found throughout the state. 



E. Que. to Assin., southw. to N. C, Ala., Kans., and Colo. 



