90 
to a very stretched pseudo-tuber %* with two pairs of decussate 
leaves which tightly enclose the tuber. After this the axis grows 
on and shows already two small leaftips. 
Dendrobium veratrifolium Lndl. 
Habitat New Guinea. 
Legit Mrs. Scuzrrer, Mr. Cornelis (Batavia), Nov. 1919. 
Two equal specimens. Fig. 20. 
Both flowers are at the base somewhat campanulate. There are 
two opposite columnfeet slightly bent upwards which are twolobed 
and light green at top. Sepals two obliquely-erect, bent outward 
at top, lilac white, broadened at their base and decurrent along 
the columnfoot. Two labella alternating with the sepals. 
Dendrobium jimbriatum Hook., var. Sumatranum J. J. 5. 
Culta in horto bog. Legit E. Jacossoy, June 1921. 
Several stems disturbed at the top. The normal leaves have. 
like the allied species a sheath that wholly envelopes the stem. 
Of many of the higher leaves the sheath is split up, guttershaped 
and bent backward. As some of the sheaths grow together they 
cause biostrepsis just as mentioned before about other species 
of the same genus. 
Dendrobium mutabile Lndl. 
Legit R. C. Baxnuizen van pen Brinx, June 1921, Java. 
Dendrobium always has lateral inflorescences. A couple of 
specimens came to hand with terminal racemes. The highest 
leaves have gutterlike sheaths with the top turned backward. 
Dendrobium Phalaenopsis Fitag. 
Culta in horto D. van Munem, Batavia, Aug. 1920. 
Branchlet of a normal stem bearing two small leaves and a 
terminal flower. Transition from sprout to inflorescence. The 
_ hormal inflorescence is a long raceme. 
Bulbophyllum mirabile Hallier f. 
Habitat Borneo, culta in horto bog. 
