3o8 



PHILOSOPHICAL NOTES ON 



stem hairs of Cynwpolia barbata, Fig. 124. I have also eu- 

 (leavoured to show that tho oil-glands of the peel are the moditied 

 homologues of the conceptaclcs of Fucvs, and others. These 

 conceptacles are tilled with reproductive hairs, some of which may 

 be atrophied, others tilled with spermatozoids. 



FifT. 160. Oil containing dermal wart of inflorescence of D. fraxinella 

 (Such's " Phys. of Pits.," Y'v^. 184, after Kauter) : («) epidermal cells produced 

 into a point, (6) ; (c) breaking up of inner cells containing oil. 



According to my view, then, we would have reproductive 

 hairs, glandular hairs, oil-glands of orange-i)eel, and juice vesicles 

 of its pulp, all very probably homologous organs. To carry the 

 homology a little further, not impossibly, the juice vesicles (or 

 juice hairs) of the pulp-carpels may be the remnants of male 

 reproductive hairs (antheridia) turned to other puri)oses, Avhile the 

 ovules on the margins of the carpels may be comparable to 

 moditied spores, which are fertilized in a rounda)>out way by the 



