REPRODUCTION BY SEED AT 
As a rule the stamens are quite separate from one 
another, as in the Poppy and the Wallflower, although 
they frequently “‘ adhere” to the petals as in the 
Bindweed ; but occasionally the filaments ‘* cohere,”’ 
as in the Gorse; while in the whole great family to 
which the Daisy and the Sunflower belong, the anthers 
are united or “ coherent.” 
I may add that we use the word “ cohere ” and 
its derivatives when dealing with the union of organs 
that are the same—for example, “‘ coherent ”’ stamens ; 
but when they are not the same the correct word is 
‘“‘ adhere.” Thus the stamens of the Bindweed are 
‘“‘adherent ’’ to the petals, and in practice this 
distinction is a decidedly useful one. 
I must now say a little about a point of great 
significance. Most of the plants that we know best, 
and all those that I have mentioned hitherto, contain 
stamens and a pistil in every flower; but there are 
some, like the Vegetable Marrow and the White 
Bryony, in which no single flower contains both of 
them. In the Vegetable Marrow we find on one and 
the same plant some flowers with stamens but no 
pistil, as well as others with a pistil but no stamens ; 
while in the White Bryony the separation of the two 
is more profound, for a plant whose flowers contain 
stamens will have none that contain a pistil, and 
vice versa, the pistil-bearing flowers are to be found 
upon plants without any that bear stamens. 
Thus there are three main types of plant in this 
respect :— 
i. Those that produce stamens and a pistil in every 
flower. 
ii. Those that produce them in separate flowers on 
the same plant. 
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