1. 
   Involucel
   In·vol'u·cel noun [ Dim. of involucre , or involucrum : confer French involucelle .] (Botany) A partial, secondary, or small involucre. See Illust. of Involucre .
   Found op http://www.encyclo.co.uk/webster/I/93
   
   
2. 
   involucel
   <botany> A secondary involucre, as the bracts subtending the secondary umbels in the family Umbelliferae. ... (19 Oct 1998) ...
   Found op http://www.mondofacto.com/facts/dictionary?involucel
   
   
3. 
   Involucel
   • (n.) A partial, secondary, or small involucre. See Illust. of Involucre.
   Found op http://thinkexist.com/dictionary/meaning/involucel/
   
   
4. 
   Involucel
   a secondary involucre as in the apiaceae
   Found op http://www.encyclo.co.uk/local/21767
   
   

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