Fertility and poliploidy of Euphorbia Cyparissias in Canadá 

 - Ottawa  1953 
 - p. 152-163  il., 10 
 - Canadian Journal of Botany .
<br/><br/><label>Subjects--Topical Terms: </label><br/>POLIPLOIDIA<br/>CANADA<br/>FERTILIDAD<br/>EUPHORBIA CYPARISSIAS