172 HETEROSTYLBD TRIMORPHIC PLANTS. Chap. IV. 



Table ZT— continued. 

 Oxalia Valdiviana (from Hildebrand).. 



We here have the remarkable result that every one 

 of 138 legitimately fertilised flowers on the three forms 

 yielded capsules containing on an average 11.33 seeds. 

 Whilst of the 255 illegitimately fertilised flowers, only 

 6 yielded capsules which contained ^.83 seeds on an 

 average. Therefore the fertility of the six legitimate 

 to that of the twelve illegitimate unions, as judged 

 by the proportion of flowers that yielded capsules, is 

 as 100 to 3, and as judged by the average number of 

 seeds per capsule as 100 to 34. It may be added that 

 some plants which were protected by nets did not spon- 

 taneously produce any fruit; nor did one which was 

 left uncovered by itself and was visited by bees. On 

 the other hand, scarcely a single flower on some uncov- 



