PROLIFICATION OF FRUIT. 143 
TABLE B. NUMBER OF CARPELS IN ABNORMAL FRUITS OF 
PASSIFLORA. 
N F N F N F N F N F 
3 3 18 3 27 i 36 3 46 2 
4 18 19 2 28 1 37 4 47 ii 
5 3 21 4 29 4 38 2 48 1 
6 8 22 2 30 1 39 2 55 1 
7 3 23 a 31 3 41 3 57 1 
13 1 24 2 32 1 42 1 
14 1 25 2 33 1 43 2 
15 3 26 3 34 4 45 2 
A rupturing of the wall of the fruit in the abnormal ex- 
amples was very frequent, amounting to about 30% in one 
of the lots collected in the open. A very noticeable differ- 
ence between the material growing in the greenhouse and 
in the open was the very much smaller size of the included 
group of carpels in the former. In only about 5% of the 
examples collected in the Cycad house was the wall of the 
fruit ruptured by the included body, which was usually 
quite small and simple, while in the material grown outside 
the inner group was usually large and very complicated in 
structure, being composed of a great number of irregularly 
arranged carpels. 
It is interesting to note that prolification of the fruit 
has been seen by three observers in another member of 
the Passifloraceae, Carica Papaya. Méiiller* figures a 
sterile fruit containing a large central fruit with numer- 
ous ovules. According to Houard,f Prain{ figures a 
specimen containing numerous secondary fruits. Urbina§ 
discusses an example in which the cavity in addition to the 
normal black seeds was filled by six conical, conduplicate 
* Miller, F. J. c. 
+ Houard, C. Rev. Gén. Bot, 18 131. 1906. 
¢ Prain, D. Journ. As. Soc. Bengal. 18953 196-198. pl. 4-6. 
§ Urbina, M. La Naturaleza. 83359-8360. pl. 29. 1900. 
