192 



whorl, are placed in a common right-winding spiral^ with a diver- 

 gence of nearly 135" (1—5 îs nearly 360°- 180" = 540"). Thèse 

 scars are numbered in the figure according to this spircJ. The leaf- 

 scars of the first whorl appear not to form one single transverse 

 row, but are placed at différent levels. They even form clearly 

 parastichies, and when we count thèse, there appear to be three in 

 a right direction and five in a left one. Thèse scars can therefore 

 be numbered without any référence to the lower leaves, and when 

 we do 80, they form not only a phyllotaxis exactly of the same kind 

 as leaves 1 — 5, but also their first member is the one (indicated in 

 the figure as number 6), which stands just in the position it should 

 hâve, if the whorl is the continuation of the phyllotaxis of the lower 

 leaves. 



The second whorl shows just in the same way three right-hand 

 and five left-hand parastichies, and an independent numbering of 

 thèse leaves shows that their first number is the one indicated as 19; 

 this one bas the right place in connection with the position of the 

 highest member 18 of the preceding whorl. 



Above the second whorl there are eight scars of scattered leaves. 

 The first of them, 31 lies in the position it should hâve, as following 

 from the position of the last number of the second whorl. The 

 numbers 34 — 38 also lie in the expected situations, there is however 

 a certain anomaly in the position of 32 and 33. It is true there are 

 two leaf-scars on the orthostichies were 32 and 33 should be, but 

 they are not in accordance with the expectation in so far, that 32 

 is without any doubt placed higher on the stem than 33. There is 

 however no reason to change their numbers, for then the whole 

 regular spiral would be disturbed. Especially when we consider that 

 the bracts numbers 39 — 49 hâve such positions, that they form the 

 direct continuation of the same normal spiral, we cannot avoid 

 the conclusion that hère is a certain metatopy, or that the internode 

 between 32 and 33 bas a "négative length" of 0.7 cm. From ail 

 this foUows that the shoot under considération bas throughout one 



^ The direction of the spiral is taken as in most botanical wcrks; right is ascen- 

 ding to the right as seen from the axis of the stem. 



