FORK TNG AND FASCIATION. 



11 



corresponds to the transversely-extended, continuous 

 pith of a fasciated vegetative stem. Such a fasciated 

 inflorescence is one in which the tendency to subdivide 

 has become but partially and incompletely manifested. 

 Conditions more advanced in this direction are often 

 observed in such capitula, in which the individualiza- 

 tion into separate heads is becoming marked, and there 

 are all degrees of that condition. Constrictions appear 



Fig. 69. — BelUs perennis (Daisy). Fasciated peduncle and capitulum and 

 normal daisy at side tor comparison. (W. H. Hammond, photo.) 



in the capitulum by which the ray -florets arise ever 

 nearer and nearer the centre, until ray-florets and bracts 

 may extend completely across the head as the division 

 into secondary heads becomes more pronounced, until, 

 finally, these heads become completely individualized, 

 each with its own involucre, and either sessile and 

 crowded together, or stalked and more distant. 



Before leaving this subject of fasciation of the in- 

 florescence there is one other matter that may be 

 referred to. In many strongly-fasciated terminal 



