78 
Mr. Grootines at Batavia brought a great number of speci- 
mens of this species from Borneo. Among the first inflorescences 
developing at Batavia several were abnormal showing transitions 
to leafshoots. Mr. Grootines was kind enough to hand over to 
us the said abnormities for a closer examination. 
1°. A branchlet with roots at the base produces in the axil 
of a normal bract a normal flower and lengthens beyond this 
to an ordinary leafy shoot. 
2°, A similar branchlet with roots shows leaves, which are 
partly petaloid (coloured), amongst the ordinary ones. 
3°. A root-bearing ditto with a flower in the axil of one of : 
the fairly normal though small leaves. From one of the lowest 
sheaths of the same springs a little branch. The above flower 
is dimerous, its column on the left side weakly developed. 
As on the right sepal an inward projecting ridge divides it 
into two parts which may represent two cohering sepals, the 
flower admits still of another explanation, viz.: 3 sepals, of 
which two coalesce, and a corolla of which a lateral petal is 
wanting. Is this the best explanation, then the flower connects 
itself in a quite natural way with n°. 5. 
4°. A root-bearing twig with a normal flower and moreover, 
in one of the lower axils, an abnormal one. The latter is di- 
merous, the labellum is adnate to the column and the pes 
gynostemii, the petal to the column only. 
5°. A root-bearing shoot without leaves with abnormal flower: 
column on one side (the left) incompletely developed, left anther- 
cell defective. Left sepal considerably smaller than the two other 
ones, left petal wanting. Pes gynostemii doubled (fig. 34, 35), 
each of the parts with a distinct cavity and a labellum. The left 
sepal embraces the double pes and alternates with the labella. 
6°. Inflorescence of two flowers, destitute of leaves and lacking 
roots. One of these flowers is pseudo-dimerous and has both 
column and pes laterally compressed. The second flower was lost. 
Apart from the above instances relative to our remarks on 
p- 76 we mention the following specimen of D. superbum which 
was collected in January 1895 in the Gardens of Buitenzorg. 
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