70 



In n°. 3 two stigmas are smaller than the others, moreover 

 the bract is divided into two. 



In n°. 4 (Z. carinata) a sepal has grown together with an 

 adjoining petal. There is a sui^erniimerary bract. 



C. The formula of five specimens is : 



Besides the 4- celled ovary also the coi'olla with the antipe- 

 talous stamens shows the number 4. 



In n°. 5 (Z. rosea) one of the stigmas is inserted much lower 

 than the three others. The fourth petal (with its stamen) springs 

 close to one of the others between the same sepals; both by 

 its cramped position and its stunted development it immediately 

 showed itself as a doubling of a petal. Two bracts coalesced 

 to a two-topped sheath. 



In n°. 6 (Z. rosea) the fourth cell is very small only and 

 bears only one series of ovules. The lowermost stigma still 

 lower than in n°. 5. Fourth petal and stamen as above. Two 

 bracts grown together. 



In n°. 7. Two of the sepals strongly diverge, the extra-cell 

 of the ovary is seen in correspondence to the interjacent space 

 and higher up we find the extra stigma which as in previous 

 cases does not reach up to the top of the style. One of the 

 antisepalous stamens smaller. One of the antipetalous stamens 

 formed through bifurcation has a flattened filament with 3 

 anther-cells, thus showing incipient doubling. 



No. 8 and n°. 9 as distinctly as the preceding show doubling 

 of P and St. 



D. The formula of one specimen is: 



D4 is bt4 + 4 0(--j) 



The flower is consequently almost tetramerous, only one 

 petal is wanting. 



N°. 10 which is built according to the above formula, shows 

 the following additional peculiarities : stigmas 3, the only stamen 



