Tlie Inheritance of Fasciations. 501 



larger number planted on the same area, but too close to- 

 gether. The number of fasciations can be diminished 

 by cultivation on sterile sand and increased by the addi- 

 tion of manure. The most numerous and the finest in- 

 stances of the anomaly are produced by cultivation in 

 pots with heavy manuring and by subsequent trans])lan- 

 tation to the beds; and so forth. -^ 



Further, a considerable effect can be exerted on the 

 production of fasciations, as upon that of monstrosities 

 in general, by pruning and by the selection of buds which 

 accompanies this process. Thus, Goebel says in his Or- 

 ganograpliie^ that fasciations can be artificially produced 

 by diverting the ''sap" with great intensity into a lateral 

 bud which would otherwise have obtained only a small 

 quantity of it. It is for this reason that fasciations are 

 particularly abundant on adventitious branches and shoots 

 from cut stems. Even in annual plants such as Phaseoliis 

 ynultiflorus and Vicia Faha, fasciation can be induced by 

 cutting off the plant above the cotyledons. A plant which 

 is peculiarly suitable for the demonstration of this method 

 is Agrostemma Githago, which in my cultures always 

 produced an abundance of anomalies, but did so with 

 greater certainty when I had removed the main stem, 

 just above the cotyledons or the first pair of leaves. The 

 axillary buds, which, as a rule, do not develop, grew out 

 under this treatment and frequently became fasciated 

 (Fig. 111). 



The phenomena of periodicity are also associated with 

 the effects of nutrition. Lateral branches of fasciated 

 shoots are usually of normal structure; but broadened 

 ones not infrequently occur amongst them. If they do, 



^ Botan. Ccniralhlatt, 1899, he. cit. 

 ''Vol. I, p. 234. 



