| 
			Greek πρό, before. | 
		
			 Ref: 
				
					L. Margulis & K.V. Schwartz, 1998: 41.
			 | 
		
		
			| 
				Greek karyon, seed. | 
			
				 Ref: 
					
						L. Margulis & K.V. Schwartz, 1998: 41.
				 | 
			
			
				| 
					Greek karyon, kernel. | 
				
					 Ref: 
						
							L. Margulis & K.V. Schwartz, 1998: 41.
					 | 
				
				
					| 
						Greek karyon, nucleus. | 
					
						 Ref: 
							
								L. Margulis & K.V. Schwartz, 1998: 41.
						 |