ALDER BUCKTHORN 



307 



t Flowers small, greenish and inconspicuous ; [For (tt) 



not Rosaceous. Sepals, petals and stamens 



equal in number ; ovary syncarpous. 



Sepals, petals and stamens 5 each: the petals 



very minute, on the inner margins of the 



cup-like calyx-tuhe, each loith a small stamen 



opposite its base. 



Rhamnus Fy^angula, L. Alder Buckthorn (Fig. 122). 

 Small tree. 



Flowers hermaphrodite, whitish, in axillary cymose 

 tufts, or paired, or single. Protandrous, with exposed honey. 

 Stamens and petals 5 each. Pollen small, about 80 x 20 /i, 

 white, smooth, rounded tetrahedral to ellipsoid with 



?eep. 809.] 



Fig. 122. Alder Buckthorn, Rhammn Frangula. 1, flowering shoot; 

 2, flower; 3, the same in vertical section; 4, fruit; 5, seed, 2 and 3, 

 enlarged, p. 307 (Wo). 



202 



