MEMBERS OF PLANTS. 



varieties, according as it resembles a panicle, a cluster, 

 or a spike : another, when the central axis follows the 

 centrifugal evolution, and the side branches the centri- 

 petal, which is termed a bundle ] , as in yarrow. 



Flowers. Mixed evolution, a, bunch (lilac); b, bundle (sneeze 

 wort yarrow). 



The Flower-cup. 



Great attention has been paid to the different forms 

 observable in the outer envelope 2 of flowers, and 

 several terms are used for these among botanists fo 

 the sake of distinctness, but to beginners they are 

 often very puzzling, particularly as different authors 

 give different meanings to the same term. What is 

 more objectionable, Jussieu, Lamouroux, and others, 

 term a flower perfect or complete when it has a certain 



(1) In Latin, Corymbus. 

 (2) In Latin, Perigonium (DE CANDOLLE). 



