REJUVENESCENCE IN NATURE. 49 



(those from the axil of the upper leaf of the two- leaved 

 and of the single leaf of the one-leaved joints of the 

 " Lotte"). Therefore, on the two-leaved joints of the 

 " Lotte" the secondary sprout from the upper leaf-axil 

 behaves like the primary sprout from the lower, while it 

 is essentially different from the primary sprout of the 

 upper, since the primary sprout (which carries on the 

 Lotte") is added on without a cataphyllary leaf and without 

 prosenthesis, and the secondary sprout (which forms the 

 " Geitz") begins vrith a cataphyllary leaf and with 

 prosenthesis. The '■'■Lotten" grow all through the sum- 

 mer, and often on until late in autumn, forming a chain, 

 endless in its nature, which is only forcibly broken off by 

 the commencement of winter. I have counted as many 

 as twenty-six constituent joints (thus twenty-six tendrils 

 and about forty leaves) in strong " Lotten!' The 

 "Geitzen" also die away at the point in winter; the 

 weak and late developed often even down to the base, so 

 that only the cataphyllary leaf with its axillary bud 

 remains. This lowest part of the "Geitz" is of especial 

 importance. In the axil of the basilar cataphyllary leaf 

 of the basal-sprout of the '■'Geitz," is found a bud (as 

 stated above, in describing the condition in the first 

 year) ; this bud begins with two firmly-connected cata- 

 phyllary leaves, and endures through the winter in the 

 closed condition. It is this resting-bud from which the 

 series of generations of the "Lotte" and indirectly the 

 formation of "Geitzen," is repeated in the next year. 

 It is, therefore, first of alia "-Lotte" bud, and, if the vine 

 has attained the proper age, which is usually in the fifth 

 or sixth year, at the same time a bearing bud, since the 

 inflorescence appears at the lower parts of the "Lotte" 

 in place of the previous tendril-formation. In this case 

 numerous hypsophyllary leaves occur in place of the 

 single hypsophyllary leaf of the tendril, and the axis ends 

 in a terminal flower ; by graduated ramification from the 

 axils of the hypsophyllary leaves arises, then, the richly 

 panicled blossom of the grape, which, in opposition to 



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