Oi^ THE ORGANS. 59 



stalks, a fascicule (fasciculus) is formed. Of the former, 

 Arraeria vulgaris is a common example; and of the latter, 

 Dianthus barbatus. 



A ball {glomerulus) is an irregular collection of flowers 

 with stalks. We hence speak of conglomerated Jlower-stalks 

 (pedunculi glomerati), when these are collected together, of 

 different lengths, into one heap. 



The associated fruit-capsules of Ferns, upon the back of 

 the frond, form the sorus. 



A bunch (racemus) is an inflorescence, where from one 

 common principal stalk undivided flower-stalks arise. When 

 the lower ranges of these are so much lengthened, and the 

 upper so shortened, that the flowers seem almost to be placed 

 in one horizontal plane, it is called a corymb (corymhus). 



The umbel (umbella) is that inflorescence, where the subor- 

 dinate stalks extend themselves in a ray shape, on the sum- 

 mit of a common flower-stalk. When these subordinate stalks 

 are again divided, the umbel is called compound. 



The panicle (paniculd) is an inflorescence, where the sub- 

 ordinate stalks of a common principal stalk are again divided. 

 When these are condensed, it is called a thyrse {thyrsus) j 

 and when the flowers seem to lie in one plane, it is called a 

 cyme {cyma). 



85. 



The receptacle {receptaculum), is that expanded part of the 

 fruit-stalk which bears the parts of fructification. This part 

 is also called discus hypogynus, when, like a disc, it bears the 

 sexual parts. When it is swelled up, it is called gymbasis and 

 sarcobasis, (105.) In the compound flowers, the expression 

 clinanthium has been lately proposed, to express the same 

 idea. It is of much importance how far we extend this idea 

 of the receptacle, because the separation of the sexual parts 

 is connected with the separation of the receptacle. If we 

 admit the separation of the sexual parts in Euphorbia and 

 some other Tricocca^ we must necessarily regard the small 

 stalk which bears the germen, as a sign of the separation of 

 the receptacle. We also find the two receptacles, which otlaer- 



