38 INTRODUCTION TO EMBRYOLOGY OF ANGIOSPERMS 



A peculiar feature met with in some members of the Mimosaceae 

 is the development of transversely placed sterile septa in the anther 

 lobes (Fig. 31). In some members of the Loranthaceae also, viz., 

 Dendrophthoe (Rauch, 1936), Elytranthe, and Amyema (Schaeppi 



Fig. 31. Structure of anther in some members of the Mimosaceae. A, Parkia, 

 l.s. anther showing two rows of pollinia. B,C, pollinia dissected out from anther. 

 D, Dichrostachys, l.s. anther, showing pollinia; note stalked gland gl at apex of 

 anther. (After Engler, 1876.) 



and Steindl, 1942), the microsporangia become vertically parti- 

 tioned by the formation of sterile septa, and in Viscum (Schaeppi 

 and Steindl, 1945) such partitions arise not only in the vertical plane 

 but also in the horizontal one so that each anther has as many as 

 50 loculi. 



