48 THE PHENOMENON OF 



the succeeding sprouts (members of the series of genera- 

 tions of the " Lotte") are added upon the foregoing with- 

 out repetition of the cataphyllary formation, and possess 

 alternately one and two euphyllary leaves before the transi- 

 tion to the formation of the tendrils. From this arises quite 

 a peculiar arrangement of the tendrils, which are arranged 

 distichously, but in such a manner that two successive 

 tendrils always fall on the same side, since every third 

 leaf of the "Jjotte" is without an opposite tendril.* It 

 is further to be remarked, that the imposition of the dis- 

 tichous arrangement of the leaves occurs with prosenthesis 

 on the first or basal sprout of the "Lotte" while all the 

 following commence without prosenthesis ; hence arises 

 the uninterrupted continuation of the distichous arrange- 

 ment of the euphyllary leaves, through the whole chain of 

 sprouts of the "Lotte" while at the origin of the "Lotte" 

 occurs a crossing of the ranks with the subtending leaf 

 (the basilar cataphyllary leaf of the "Geitz" In the 

 axils of the euphyllary leaves of the "Lotte" new buds 

 are formed, unfolded more or less perfectly during the 

 course of the summer, and representing the branches of 

 the "Lotte" which have a connection similar to the 

 "Lotte" itself, i. e. are in like manner chains of sprouts. 

 They are weaker than the "Lotte" from which they 

 arise ; very often only very poorly developed, especially 

 on the lower parts of the "Lotten" These are the true 

 "Geitzen" of the vine, which we met with in a yet almost 

 irrecognisable condition of development on the principal 

 shoot. They form the second annual series of generations, 

 and are distinguished from the "Lotten" by their basal 

 sprouts possessing constantly only one cataphyllary leaf 

 and two euphyllary leaves. Although all "Geitzen" are 

 of similar nature, they originate in two ways, part, 

 namely, are primary axillary sprouts (those from the axil 

 of the lower euphyllary leaf of the two-leaved joints of 

 the "Lotte"} ; part secondary (accessory) axiUary sprouts 



* I have found this constant, not only in Vitis mnifera but also in several 

 American vines. 



