CH, XI V] GOOSEBERRY. 193 



Gooseberry (Ribes grossularia). 



The flower of the gooseberry (fig. 93) has already been 

 described, the structure of the fruit may be made out by 

 sections of the swelling ovary in the green or unripe 

 state. The noticeable points are (1) the thickening of 

 the wall of the ovary by the growth of tissue which 

 ultimately forms the pulp of the ripe fruit, (2) the curious 

 structure of the external seed-coat, a layer of elongated 



FIG. 93. 

 GOOSEBERRY. 



On the left, the flower longitudinally divided. 

 o, the cavity of the ovary ; p, petals ; s, sepals ; /, filaments ; st, the 



bifid stigma. 



In the centre, a transverse section of the ovary. 

 On the right, a transverse section of the ripening fruit, 

 a, transparent cells of the testa. 



palisade-like cells, which swell up when the berry is ripe, 

 and form part of the pulp. Thus in the gooseberry the 



D. E. B. 13 



