3 
In the Orchidaceae we have stated anew a great number of 
aberrations leading partly to simple variations, partly to ata- 
visms, partly to serious disturbances of the normal course of 
development, partly also to dimery and pseudodimery. 
To Dr. Vatzton we are indebted for two fresh cases of meta- 
schematic flowers of the Zingiberaceae, which throw a clear light 
on their normal structure. 
The figures, of great accuracy and artistic merit, have for 
the greater part been drawn by the javanesé draughtsman 
- Darmosoediro, two of the photos (figg. 16 and 17) were taken 
by Mr. ... (fig. 38) S. E. Ramonpr, two (figg. 42a, b) by Mr. 
F. M. Dexros and finally a pencildrawing was executed by Miss 
N. van peR WaarpeN. 
For these we tender our hearty thanks. 
ZINGIBERACEAE. 
Before detailing a few deviations in this family we first wish 
to express our opinion about the structure of ‘the flower. Ac- 
cording to this conception, which I advanced in this publication 
some five years ago'), the flower consists of calyx and corolla, 
one fertile stamen, flanked by two staminodes, at the back, and 
the labellum in front. This labellam is composed of two anti- 
petalous staminodes and a rudimentary one between them. My 
opinion about the labellum is based 1° on the presence of three 
Separate nerve-systems therein 2° on the presence of a vascular 
bundle in the very middle of the labellum in connection of that 
in the anterior sepal 3° on the fact that in metaschematic 
flowers the labellum breaks up into three elements viz. two 
fertile stamens and one staminode between them. The siz nerves 
or vascular bundles belonging to the stamen and staminodes 
show themselves very distinctly on the top of the ovary, espec-. 
ially in Curcuma Zeodaria Rxb. 
Dr. Vateron, whose elaborate description of the whole family ”) 
is known to all systematists, has obliged us very much by sending: 
1) 2e Série, Vol. XIV, p. 95. . 
2) New notes on the Zingiberaceae 0 of Java and the Malayan Archipelago. 
