356 



PHILOSOPHICAL NOTES ON 



either modified stamens or modified carpels or sub-divisions of the 

 bark, such as we see in the leaves of Cotyledon and other 

 Crassulacea?, and in lliose of Mpsemhn/aiithemnm. 



Fie. 159. Fiu<?ered Lemon (Ponzig, " Stu<lj siioli Apjrumi," Fi^^. 6, pi. 9), 



One would hardly credit the fleshy leaves of the latter and of 

 Crassula with capability of conversion into stamens ; neverthe- 

 less if thev are leaves there can be no question that these lumpy 

 or^^ans are homoloo-ous with stamens. Not only these are .so, but 

 also the leaves of .such plants as Aloes and Agave I AVhat 

 possible difliculty then can there be in considering the segments of 

 Ten/ig's Finfjered Lemon ^ Fig. 159, as reverted stamens or 

 carpels. 



We thus see that tlie segments of the peel can ])e either 

 entii'clv dissociated, as Ave .see them in this fingered lemon, or they 

 can become so connate as to fiise into an envelope completehj 

 enclosing the ovary and losing all trace of liaving been made up 

 of separate segments, as we see them in the smooth and uniform 

 peel in ihe oranges of the London slio])s. 



As to the oil-glands of the peel and ihc: juicP vesicles oi the 

 pulp, there can be no mi.staking Penzig's de.sciiption of their 

 internal structure. Though they may differ in form they are 



