CHAPTER XXX. 



PHYLLODI* OF THE FLORAL WHORLS. 

 VlEESCENCE AND FOLIACEOHS CONDITIONS — SePALS, PeTALS, AND 



Stamens. — The last changes to be described, which are,, 

 commoii to all the members of a flower, are virescence, when 

 they retain their normal forms, but are simply green ; and 

 foliaceous conditions, when they assume more or less a truly 

 leaf -like form. 



Dr. Masters has giveu descriptions t of several of each 

 kind of floral members as well as of foliaceous bracts, to 

 which I must refer the reader for details. There are certain 

 particulars, however, to which I would especially draw 

 attention as throwing light upon the ordinary structure of 

 floral whorls, and especially that of ovules. 



Taking the Alpine Strawberry as an illustrative case, the 

 petals, stamens, and carpels are often more or less foliaceous ; 

 but the petals retain a palmate venation, though the three 

 leaflets of the ternate leaf are pinnately nerved (Fig. 83, a, 

 b). In the case of stamens the connective may be foliaceous, 

 as in Petunia (Fig. 81) ; J also in the Alpine Strawberry 

 (Fig. 83, a) and in the " Green Rose " the anthers are often 

 persistent on either edge of a leaf-like intermediate part 



* The abnormal assumption of a leaf -like character. 

 t Teratology, p. 241, seqq. 

 t lUd., p. 254. 



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