132 



Habitat Borneo. 



The lateral petals tend to transformation into labella owing 

 to the broadening midrib and the covering with hairs as in 

 the labellnm (fig. 10). 



Grammatophyllum speciosum Bl. 



Coll. J. J. S. in sno horto, May 1912. 

 Habitat Java. 



The roots which collect waste substances flattened and 

 bifurcating at top. 



Hetaeria cristata Bl. 



Coll. Dr. S. V. Simon, Tjibodas. May 1911. 



A double stem : leaves opposite and their sheaths grown 

 together, whereas in normal specimens the leaves alternate and 

 their sheaths are free. Peduncle under the flowers grooved and 

 flattened at top. Flowers normal. Fig. 11. A similar case of 

 two .stems of Cauna melted together but bifurcating at top 

 was described in this publication 1904 '). 



Nervilia discolor Schltr. 



Coll. J. J. S. in horto bog. 



Habitat Java. 



Normal: from the tuber after a period of rest there deve- 

 lops a subterranean stem covered with scales which in case of 

 sufficient vigour of the tuber terminates in a flowerstalk. After 

 the flow T ering there spriugs from the axil of one of the (sub- 

 terranean) scales a similar stem which, however, produces one 

 foliage leaf resting upon the soil. From the axils of the scales 

 there grow horizontal offshoots which swell to fresh tubers. 

 After this the old tuber, the only leaf and the offshoots perish, 

 whereas the fresh tubers rest until another period of development. 



Abnormal: instead of one foliage leaf Mr. Smith found three 

 of them and one of the offshoots very short and producing a 

 foliage leaf and not swelling to a tuber, (fig. 12). 



4) Vol. IV, p. 67. 



