150 MR. S. J. A. SALTER ON A SEXUAL MONSTROSITY IN PASSIFLORA. 
to admit of doubt. I merely wish to urge what the teachings of the curious and unex- 
pected facts I have now detailed in this paper seem to me to enforce—that the possible 
fallacies in supposed cases of parthenogenesis are likely to be very subtle, that every 
such source of error should be eliminated in an attempt to prove so flagrant an exception 
to that which is (in flowering plants, at least) an almost universal physiological rule, and 
that the evidence should be complete, as well on negative as on positive grounds, before 
the reputed fact can be considered as established. 
DESCRIPTION OF THE PLATE. 
PLATE XXIV. 
Fig. 1. The sexual parts of Passiflora palmata exhibiting malformed ovary. (Enlarged 3 diameters.) The 
extremity of the ovary is open, and from its interior project some large polleniferous ovules: 
a sessile anther is attached to the free edge of one of the carpels. 
Fig. 2. A specimen similar to that represented in fig. 1, cut vertically, and displaying the interior of the 
ovary. (Enlarged 3 diameters.) 
Fig. 3. Sexual parts of Passiflora palmata in which, in the ovary, the carpels are split from each other at 
the centre of the fruit, the everted edges being developed into antheroid bodies. (Enlarged 
3 diameters.) 
Fig. 4. Modified ovule (?) from the interior of a malformed ovary, containing a mass of pollen. The 
specimen has been compressed so as to be seen by transmitted light. (Magnified about 
35 diameters.) 
Fig. 5. Modified ovule, compressed, exhibiting pollen in the nucleus, and the funiculus with vascular 
bundles. (Magnified about 35 diameters.) 
Fig. 6. Diagrammatic outline of the same, previous to compression. 
Fig. 7. Anatropous ovule, broken by compression, and freeing a small mass of coherent pollen-grains. 
(Magnified about 60 diameters.) 
