. 88 
horizontal at their base and connected by narrow decurrent 
strips. At the base of the whole stem several buds Co of 
one) of which one already shows a leaf. 
Macodes robusta J. J. S. Fig. 16. 
Legit J. J. Smirn in horto bog., 1920. 
All bracts of the peduncle laterally coalesce as in biastrepsis. 
The whole peduncle shows only a ae torsion. Higher up the 
bracts are free. 
Considering that the leaves of the majority of Orchidaceae 
are spirally arranged and the strongest torsions are shown by 
decussate leaves in consequence of lateral coalescence it is obvious 
that the torsion in our case is not very strong. 
Coelogyne pulverula T. et B. 
Habitat Sumatra, culta in horto bog. 
Legit J. J. Smirn, Sept. 1920. 
A raceme with trimerous and pseudo-dimerous flowers and one 
flower without lip. N.B. without further indication we speak of 
pseudo-dimery when the lip is rudimentary and the paired 
sepals are grown together. 
Dendrochilum pallideflavens BI. Fig. 17. 
Habitat Goenoeng Pantjar, culta in horto bog. 
Legit J. J. Smura. 
Inflorescence growing from a leafy branch instead of being 
produced by a rudimentary sprout. Fig. 17. A similar case was 
observed by Dr. Smrrx with D. aurantiacum Bl. and described 
in ,Recueil des Tray. bot. neerlandais”’, Vol. I, p. 204. 
Arundina revoluta Hook f. var: Borneensis J. J. 8. 
Legit J. J. Smirn in suo horto. 
Flower dimerous: 2 sepals, one petal, 1 lip, ovary four-grooved, 
two-celled, 
Phajus Tankervilliae Bl. 
Habitat China. Legit D. van Muiuzm in suo horto 1919. 
Two pseudo-dimerous flowers. 
