172 



In connection with these observations we would quote a curious 

 statement by Schlkiden about the three carpids of Canua, viz , 

 "that one grows out to the style, one to a stamen, one becomes 

 rudimentary". And also what Kornicke says to this "Whereas 

 the foregoing investigators found room for 6 stamens, Schleiden 

 does not even find room for one and is compelled to borrow 

 it from the styles" (IV, p. 195). 



When examining the figures of Eichler relative to the 

 development of the flower it is conspicuous (especially in his 

 fig. 18) that the primordium from which the petaloid anther 

 originates consists of two portions, of which the left develops 

 to an anther, the right to ^1% But as these portions, according to 

 him, have been formed through division of one primordium, 

 he persistently sticks to his opinion that the anther should be 

 a unity. Even does he in spite of himself indicate in his figure 

 the development of a from ■p'^\ His firm desire to derive ])oth 

 a and the other alae from the stamen -primordium by way of 

 stipules makes him overlook the real state of affairs. Most 

 striking is his fig. 20 in which a opposes p"^ and again his 

 fig. 25 b in which (3 does 7iot oppose ap ! A greater countenance 

 to the conception brought forward in these pages is hardly 

 imaginable. 



The latter is directly supported by the outcome of Payer's research 

 into the development of the flower of Canna which we find in 

 his interesting and richly illustrated "Organogenic de la fleur" 

 (11, p. 677). According to his observations both x and stamen 

 are born as separate primordia of which the future stamen 

 draws special attention from the very first on account of its 

 much greater size. This proportion of an embryonic part enables 

 us fully to understand its future production of both an anther 

 and an ala as will be shown by and by. 



I must now draw attention to fig. 22, showing a vertical 

 section of sepal, ala y, stamen and s' and drawn from a pre- 

 paration obtained by means of a microtome. It distinctly shows 

 that the vascular bundle rising from the ovary-wall after 

 bifurcating gives off one branch to the sepal and the other to 



