May, 1946 The Queensland Naturalist 
13 
What is the explanation of the above facts? Is 
D. Adae a dimorphic species in which at any time flowers 
may appear having the characters which I described for 
/). < mcorarium ? Or does it produce such flowers only in 
the initial stages of its flowering career, subsequently- 
and thereafter consistently — developing the typical white, 
tuberose-perfumed blooms? Tn my older plant, which I 
have had for about five years, there lias never been any 
suggestion of “ ancorarium” flowers. It would be most 
interesting if growers of I). Adac, or North Queensland 
readers who may have access to plants in their natural 
habitat, would contribute observations in regard to this 
apparent dimorphism. 
AN IMPORTANT CONTRIBUTION TO OUR 
KNOWLEDGE OF DUTCH NEW GUINEA 
Fragment* Papuana (Observations of a Naturalist in 
Netherlands New Guinea) by II. J. Lam. Translated 
from the Dutch by Uily M. Perry. Published as No. V. of 
“Sargentia” by the Arnold Arboretum, Jamaica Plain, 
Mass., U.S.A., 196 pp., 2 maps and 32 text figures. Price 
3 dollars. 
The Arnold Arboretum of Harvard University, due 
largely to the energy and interest of the Director (Dr. E. 
D. Merrill), has become the centre of recent botanical 
research in the South-west Pacific Area. All interested in 
this part of the world, especially botanists, will welcome 
the appearance of the above publication which is a trans- 
lation of several papers by the Dutch botanist, H. J. Lam, 
which appeared in 1927-9 in the “Natuurkundig 
Tijdsehrift voor Nederlandsch Indie.” Due to the great 
interest at present in the flora and fauna of the South- 
west Pacific it was thought desirable to make available 
an English translation of these important papers. Dr. 
Frans Verdoorn. of Holland and now at the Arnold 
Arboretum suggested that the Dutch Government, 
through its Board for the Netherlands Indies, should be 
approached for permission for the translation to be made 
at the Arnold Arboretum. The Board did this and further 
gave a monetary grant towards she cost of printing. Few 
botanists, if any, at the present time are doing more 
work on the flora of New Guinea than Dr. Lily M. Perry 
and it was fitting that the work of translation should be 
