Björkqvist, Ingemar <br/><br/>
Studies in Alisma L., I : distribution, variation and germination 

 - Lund  Univ.  1967 
 - 128 s. : ill. 
<br/><br/><label>Subjects--Index Terms: </label>ALISMA BOTANY GERMINATION NATURAL DISTRIBUTION VARIETIES 
<br/><br/><label>Dewey Class. No.: </label>583