67 



as a rule spring by twos side by side from the stalk. The case 

 was shown in M™^ Crozy. Only the ovaries had, along one of 

 the sides, grown together, the other parts were more or less 

 arranged in one whorl. There were 5 sepals, 7 petals, 6 alae, 

 of the latter one was partly split up into two. Lal)ella 2, one 

 normal, one divided into two leaflets with the sides of the 

 same colour facing one another. 



Stamens. One normal. Of the other one the petaloid portion 

 is not only notched but moreover bears a ridge which near 

 the anther ends in a free lobe. 



Styles. One normal, one filiform. 



B. STEM AND LEAVES. 



1°. A seedling cultivated in the Buitenzorg gardens showed 

 an almormal stem (fig. 10). Its traverse section is oval and 

 the leaves are opposite in four pairs placed straight above one 

 another. The internodes have lengths of 23 mM., 15 mM., 75 niM. 

 respectively. Just above the topmost pair of leaves the stem 

 bifurcates. The two diverging branches bear a leaf at distances 

 of 11 and 8,- mM. resp. and at their tops an inflorescence. 

 The flowers are normal. 



2°. The first stem of a rhizome, imported from Europe, bears 

 7 pairs of leaves straight above one another. Above the seventh 

 pair the stem produces two flowerstalks, after having fore- 

 shadowed an incipient bifurcation by two longitudinal grooves. 



This case and the preceding one hardly difl'er from each 

 another, they are described separately because in the former 

 case we have to do with a seedling, in the latter with a rhizome 

 showing the aberration. 



3\ Seedlings of the garden variety Ceusin Jacob reared from 

 seeds of European origin. The plants remain long undeveloped, 

 branch out copiously at the base and bear only small leaves 

 irregularly curved. The latter however attract special attention by 

 the midrib tapering to a thread- or tendril-like organ at the top 

 (fig. 11) or at times already before it (fig. 12). These threads as 



