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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 supernumerary bract. 
C. The formula of jive specimens is: 
Ry ba Dbs+¢ Ure, 
Besides the 4-celled ovary also the corolla 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. 
Ne. 8 and n°. 9 as distinetly as the preceding show doubling 
of P and St. 
D. The formula of one specimen is: 
Sy P; St,+, C.,, 
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 
