APPENDIX III 413 



CANADA 



By the Seed Control Act (4 & 5 Ed. VII., c. 41) the Governor 

 in Council may make regulations determining the maximum pro- 

 portion of the seeds of the weeds mentioned below that may 

 be tolerated in agricultural and other seeds without affecting 

 their character as being free from the seeds of the said weeds. 

 The Act gives powers of entry for inspection and taking of 

 samples. Its provisions do not, however, apply to persons grow- 

 ing or selling seed for the purpose of food, or selling or storing 

 seed which is to be cleaned and graded, or which is marked 

 " not absolutely clean " and held or sold for export only. 



The prohibitory clauses of the Act require that no person 

 shall sell, or offer, expose or have in his possession for sale, for 

 the purpose of seeding, any seeds of cereals, grasses, clovers or 

 forage plants, unless they are free from any seeds of the follow- 

 ing weeds : 



Wild Mustard or Charlock (Brassica Sinapistrum Boiss. = Sinapis 



arvensis L.) 



Tumbling Mustard (Sisymbrium Sinapistrum Crantz.) 

 Hare's-ear Mustard (Cortngia orie?italis (L.) Dumort.) 

 Ball Mustard (Neslia paniculata Desv.) 

 Field Penny Cress or Stinkweed ( Thlaspi aruense L.) 

 Wild Oats (Avena fatua L. and A. strigosa Schreb.) 

 Bindweed (Convolvulus arvensis L.) 

 Perennial Sow Thistle (Sonchus arvensis L.) 

 Ragweed (Ambrosia artemisicefolia L.) 

 Great Ragweed (Ambrosia trifida L.) 

 Purple Cockle (Lychnis Githago Lam.) 

 Cow Cockle ( Vaccaria Vaccaria (L.) Britton) 

 Orange Hawkweed or Paint Brush (Hieracium aurantiacum L. 



and Hieracium prcealtum Vill.) 

 The Sclerotia known as Ergot of Rye (Claviceps purpurea Tul.), 



unless each and every receptacle, package, sack, or bag contain- 

 ing such seeds, or a label securely attached thereto, is marked in 

 a plain and indelible manner 



(a) with the full name and address of the seller ; 



(b) with the name of the kind or kinds of seed ; 



(c) with the common name or names of the weeds named, 



the seeds of which are present in the seed sold, offered, 

 or exposed or had in possession for sale. 



