310 



LlLIACEAE 



Allium 



50 



Map 635 



Hemerocalh's fulva L. 



in the woodland. Henry Hollingsworth (Trans. Amer. Phil. Soc. 1: 311- 

 313. 1789, ed. 2) writes that sowing wheat stubble to oats will practically 

 eradicate it. This indicates that it has been a weed since early times. 



This species is found along roadsides and streams and in cultivated fields 

 and pastures. It is difficult to eradicate because it propagates both by bulbs 

 and bulblets. The principal objection to this species as well as to others of 

 this genus is that milch cows can not be pastured where it grows because 

 the garlic odor is transmitted to the milk. The task of ridding the soil of 

 this and other species of this genus is a difficult one, especially if the area 

 is subject to overflow because the bulblets are freely transported. Much 

 literature has been published on the eradication of this species. Copies of 

 this literature may be obtained gratis from the U. S. Department of Agri- 

 culture, Washington, D. C. and from the Purdue University Agricultural 

 Experiment Station, West Lafayette, Indiana. 



Nat. of Eu. ; N. H. to Mo., southw. to Ga. and Ark. 



3. Allium sativum L. Garlic. Map 638. Well established on a rocky, 

 wooded slope in McCormick Creek State Park, Owen County. Hansen 

 (Proc. Ind. Acad. Sci. 37: 319. 1928) writes that a number of farms, 

 gardens, and a cemetery in Jefferson County are infested with the escaped 

 form of the cultivated garlic {Allium sativum L.) . It is almost certain that 

 if a species of Allium becomes established it will persist unless it is de- 

 stroyed by man. 



Nat. of Eurasia. 



4. Allium canadense L. Meadow Garlic. Map 639. Found throughout 

 the state. Frequent or common in the southwestern counties in moist soil 

 in woodland and cultivated fields, where it sometimes becomes a pernicious 

 weed. 



N. B. to Minn, and Colo., southw. to Fla. and Tex. 



5. Allium cernuum Roth. Nodding Onion. Map 640. Infrequent 

 throughout the state although there are no records from the southwestern 

 counties. Where it is found, especially on the banks of streams, it is gen- 



