HETEEOTAXY. 185 



from perfect and completely closed ovaries. Moquin- 

 Tandon^ cites from Agardli an instance which seems 

 more closely to resemble the state of things in the 

 BwcJceay and which occurred in a double hyacinth, 

 wherein both anthers and ovules were borne on the 

 same placenta. Probably, though the fact is not 

 stated, the ovary of the hyacinth was open ; and we 

 are told that the flower was double that it was, in 

 fact, modified and changed in more organs than one ; 

 while in the BcecJcea nothing at all unusual was ob- 

 served till the ovary was cut open. The style was 

 present even in those flowers where there was no 

 axile placenta ; hence in these cases it could not be, 

 as Lindley stated it to be in the closely allied Baling- 

 toma, a prolongation of the placenta.^ 



Formation of pollen within the ovules. This has now been 

 recorded in two instances by Mr. S. J. A. Salter in 

 Passiflora canmlea and in P. 'palmata,^ and by the author 

 in Rosa arvensis.'^ 



In the case of the passion-flower there were various 

 malformations in the ovaries, which were all more or 



Fig. 99. Pollen within the ovule of Passiflora (after Salter). 



' Elem. Terat. Vee^t./ p. 218. 



' Masters, ' Joum. Linn. Soc.,' vol. ix, 1866, p. 334. 

 ' ' Trans. Linn. Soc.,' vol. xxiv, p. 143, tab. xxiv. 



* * Brit. Assoc. Report,' Dundee, 1867 ; and Scemann's ' Journal of 

 Botany,' 1867, p. 319, tab. Ixxii, figs. B 19. 



