OERANIAGE^. 



15 



number as the sepals, with which they alternate, imbricate in the 

 bud and dissimilar, the posterior being larger than the anterior, 

 which they cover, the latter sometimes becoming very small or even 

 in some species being entirely wanting. The androceum is formed 



Tropaolmn majtis. 



. Fig, 34. Long. sect, of flower. 



Fig. 32, Calyx. 



Fig. 35, GrynEecemn. 



Fig. 36. Fruit. 



Fig. 33. Diagram. Fig 37. Long. sect, of ripe carpel. 



of two verticils each of four stamens. In that where the parts 

 are alternipetalous, it is the stamen superposed to the spur which is 

 wanting, it being the anterior one in the verticil of oppositipetalous 

 stamens. All are, however, formed of a free filament and two-celled 

 anther, dehiscing by two lateral or interior clefts.^ The gynseceum 

 is free, formed of a three-celled ovary, surmounted by a style whose 

 summit is divided into three equal or unequal branches, bearing 



* The pollen is according to H. Mohl (in 

 Ann. So. Nat. 8&. 2, iii. 337), formed of "trian- 

 gular prisms with prickles, lateral rounded, or 



suppressed on account of the furrows found on 

 them, in water ellipsoidal, flattened, triangular 

 at the middle with three short bands : T. Majus. 



