360 



NATURAL HISTORY OF PLANTS. 



campanulate, has 3-5 valvate lobes, most frequently imbricate in a 

 variable manner (fig. 384, 385), and sometimes reflexed at antbesis- 

 The stamens, inserted near the bottom o£ the corolla, are five in 



Sambueus Eiulus. 



Fig. 383. Mower (f). 



Fig. 386. Long. sect, of flower. 



number, alternate with the lobes, each formed of a filament ' and a 

 bilocular introrse anther dehiscing by two longitudinal clefts.^ The 

 summit of the inferior ovary is surmounted by a disk often reduced 



Sambueus canadensis. 



Fig. 384. Diagram 

 (flower with. 5-ceUed ovary). 



Fig. 386. Diagram 

 (flower with 3-celled ovary'). 



to a thin glandular bed ; it is produced in a conical form and divided 

 above into 3-5 short stigmatiferous lobes. Corresponding to these 

 and to the lobes of the corolla (fig. 384) are as many cells each 

 containing a descending ovule, inserted near the summit, with 

 micropyle interior and superior, while the raphe is dorsal/ The 

 fruit is a drupe with 3-5 putamens more or less thick, enclosing each 

 a descending seed, the fleshy albumen of which surrounds an embryo 



1 Sometimes rugose or slightly emhossed. 



" The pollen according to H. Mohl {Ann. So. 

 Nat. ser. 2, iii. 324), is "ovoid, three-fold; in 

 water, spherical having three bands, with three 

 papillsa (Viburnum, Sambueus)." 



' More accurately the petals ought to be 

 united in figs. 367, 384, and 385. 



■• It may ultimately deviate so that the raphe 

 may become lateral. The coat is single. 



