f86 UNIVERSITY OF MISSOURI STUDIES [S^S 



281. ZIZIA Koch. Alexanders. 



692. Z. aurea (L.) Koch. Golden Alexanders. 

 Frequent in wet woods and thickets. 



New Brunswick and Ontario to Montana; Florida to 

 Texas. 



693. Z. cordata (Walt.) DC. Heart-leaved Alexand- 

 ers. 



Dry hills and upland woods. 



Connecticut to the Northwest Territory; Georgia to 

 Missouri and Oregon. 



282. OIOUTA L. Water-hemlock. 



694. O. maculata L. Spotted cowbane. Musquash 

 root. 



Common along streams and ditches, and the margins of 

 ponds, and in swamps. 



New Brunswick to Manitoba; Florida to Texas. 



283. ORYPTOTAENIA DC. IDERINGA Adans.]. 



HONEWORT. 



695. 0. Canadensis (L.) DC. [D. Catmdeiisis {I..) Kuntze]. 

 Common in rich woods. 



New Brunswick to South Dakota; Georgia to Texas. 



284. OARUM L. Carvies. 



696. C. Oarvi L. Caraway. 

 Occasional in yards and streets. 



Europe and the Mediterranean region to Thibet and 

 Siberia, thence to North America. 



285. TAENIDIA Drude {PIMPINELLA L.]. 



Pimpernel. 



697. T. integerrima (L.) Drude {P. i?itegerrima (L.) 

 Gray]. Yellow pimpernel. 



Abundant on rocky hillsides. 



Quebec to Minnesota; Georgia to Mississippi and Mis- 

 souri. 



