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. Labella 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. stTEM AND LEAVES. 
1°. A seedling cultivated in the Buitenzorg gardens showed 
an abnormal 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 mM. 
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 haying fore- 
shadowed an incipient bifurcation by two longitudinal grooves. 
This case and the preceding one hardly differ 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 
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