150 



ANONACEAE. 



Unona discolor Valil. 



Habitat Tropical Asia. 



Coll. February 1894. 



Three specimens a, h, c. 



N.B. Uno7ia has three small sepals and six petals in two whorls. 



a) Two of the inner petals are bifid as far as midway (im- 

 perfect doubling) (fig. 40). 



h) One of the inner petals is replaced by two of them (per- 

 fect doubling). Consequently formula S^ P3 + .'.. 



c) One of the inner petals doubled. 



Artahotrys spec. 



Habitat the East Indies. 



Coll. Sept. 1897. 



NB. The number of free carpels and fruits in Artahotrys 

 varies between 5 and oO. 



Two fruits have grown together from the base as tar as 

 halfway their length. 



Alphonsea javanica Scheff. 



Habitat Java. 



Coll. 1897 bij D. Heyting Jr. Kedoe, Java. 



Leaf with double apex. 



BIXACEAE. 



Pangium edule Reinw. 



Habitat Java. 



Coll. Anril 1895. 



A young specimen bore a leal which is nearly as far as the 

 base divided into two parts, the latter being bilobate. Along 

 the back of the petiole runs a corkline which broadens upwards 

 and at the same time sinks in to a shallow groove. Most pro- 

 bably the palmatifid leaf has, in a very early stage of develop- 

 ment, lost the mid-lobe together with a small slice of the 

 petiole and in its further growth covered the wound with 

 cork (fig. 41). 



