146 



ORGANOGRAPHY 



BOOK I. 



117 



119 120 



into the mouth of the corolla, it is meant that they cohere 

 with tlie corolla as far as the mouth, where they first separate 

 from it ; when in the Rose they are said to be inserted into 

 the calyx, it is meant that they cohere with the calyx up to a 

 certain point, where they separate from it ; when in Arabis 

 they are said to be inserted under the pistil, it is meant that 

 they cohere with neither calyx nor corolla, but stand erect 

 from tl\e point which inunediately produces them ; and finally, 

 when in Orchis or Heracieum they are said to be inserted into 

 the pistil, such an expression is to be taken as meaning that they 

 cohere with the pistil more or less perfectly. For excellent argu- 

 ments in support of this hypothesis, see Dunal's Considerations 

 sur la Nature et les Raj)ports de quelqucs uns des Organes de la 

 Fleur. I do not use them, or any such, here, because it seems 

 to be so self-evident a fact, when once pointed out, as to re- 

 quire no demonstration. 



When the filaments are combined into a single mass, the 

 mass is said to be a brotherhood or an adelphia : if there is 

 one combination, as in Malva, they are monadelphous {fig. 1 14.); 

 if two, as in Fumaria or Pisum, diaddphous ; if three, as in 

 some Hypericums, triadclphous ; if several, as in Melaleuca, 

 polyadelphous {fig. \\2.). The tube formed by the union of 

 the filaments in a monadelphous combination is called, by 

 Mirbel, androphorum. 



If the stamens are longer than the corolla they are exserted ; 

 if shorter, they are called included : when they all bend to one 

 side, as in Amaryllis, thev are declinate ; if two out of four are 



