90 



CYANOPHORIC GLUCOSIDES IN FLOWERS 



Hakea saligna Knight. 



HCN. 



Foliage, capsule, seed 

 Flowers 



Negative reactions. 

 Positive reaction. 



The test being carried out late in the flowering season, 

 only the one wdth the flowers as a whole was made ; further 

 material for individually testing the different floral members 

 was not available. 



Lomatia silaifolia R.Br. 



HCN 



(a) Foliage leaves, pedicels, petals, hypo- 



gynous glands, capsules, seed. Negative reactions. 



Anthers, pistil. 

 (h) Leaves, panicle branches, pedicels, 



Strong positive reactions. 



petals, ovarj% hj^pogynous glands. ! Negative reactions. 



Anthers, style and stigma 



(c) Leaves, petals, ovar\% hypogynous 

 glands. 



Anthers, stigma 



Stigma (with the surface cleaned of 

 pollen). 



j Strong positive reactions. 



Negative reactions. 



I 



I Strong positive reactions. 



Positive reaction. 



L. silaifolia is of special interest owing to the reported 

 properties of the flowers of kilUng flies. ^ ^ ^ The flower- 

 ing plant has also been suspected as the cause of m rtahty 

 in calves. * 



