DR. M. T. MASTERS ON THE PASSIFLORACEE. 609 
interspace between them), and one on the other side. One of the bracts might more cor- 
rectly be described as antero-lateral rather than as strictly lateral; and its fellow on the 
same side is also slightly posterior as well as lateral. 
The sepals are, as above stated, formed successively and in quincuncial order. The 
relative position of the sepals may be understood by numbering them and arranging the 
numbers in the order in which the sepals are placed, thus:—1, 3, 5, 2, 4. From this it 
may be seen that the sepal (3) which is third in the order of development, is placed in 
the cycle between that which is first developed (1) and that which is last formed (5), and 
so on. Payer and most authors state that sepals 1 and 3 are placed in front of the 
bract, which they consider anterior—in other words, that there are two anterior or 
antero-lateral sepals (1 and 3), one posterior (2), while sepals 4 and 5 are lateral or postero- 
lateral. According to my observations, sepal No. 1 is placed a little to the side of one of 
the bracts, sepal 3 is nearly anterior, sepals 4 and 2 postero-lateral, and sepal 5 lateral 
and nearly opposite to 1. The position of the several parts of the flower is shown in the 
accompanying illustrations. 
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Diagrams showing the arrangement of the parts of the flower : that to the left hand of the reader is after Payer; 
that to the right shows the arrangement as understood by the author: st are stipules, br bracts; the sepals are 
numbered 1-5, according to the order in which they are developed. The petals alternate with the sepals; then come 
the rows of the corona, and within them the stamens, erroneously represented in the left-hand figure as opposite to 
the petals instead of to the sepals. The double series in the pistilline whorl indicates the theoretical and the 
actual arrangement of the carpels; the theoretical arrangement is shown in the outer circle, the actual disposition is 
indicated by the central figure. The dotted outlines in the case of two bracts and two carpels indicate the position 
of the bracts and earpels assumed to be suppressed. The position of the tendril is shown at the side of each diagram. 
| m The five petals are formed simultaneously ; they alternate with the sepals, and are im- - 
