74 



Chrysoglossum ornatwn Bl. 



Habitat Sumatra, Java. 



Coll. 1902. 



Mr. Smith has collected a number of flowers of which the 

 upper petals perfectly coalesce with complete suppression of 

 the upper sepal. Consequently we have to do with a kind of 

 pseudo-dimery, which on account of the transverse position of 

 the sepals has a striking resemblance with real dimery. (Fig. 

 22—24). 



Coelogyne simplex Lndl. % 



Habitat India. 



Coll. April 1898. 



On a stalk with several normal flowers is produced one pseudo- 

 dimerous flower. The lateral sepals are both clearly distinguishable 

 1° by the separate apices taking the shape of small teeth (t), 

 2° by two longitudinal keels. 



As is generally the case in pseudo-dimerous flowers the la- 

 belluni in altogether absent. On the surface of the ovary there 

 are five ribs to be observed agreeing with the number of the 

 parts of the perianth actually present (Fig. 25). 



C. Swaniana Rolfe. 



Habitat Borneo. 



Coll. 1893. 



In the flower which is normal for the rest one of the petals 

 has at one side just the same colour as the adjacent lateral lobe 

 of the labellum. 



C. speciosa Lndl. 



Habitat Java. 



Coll. April 1898. 



1°. Calyx and corolla normal, to the inferior surface of the 

 column adheres a petaloid appendage, which, though of irre- 

 gular shape, corresponds with the labellum as to colour and 

 structure. This appendage probably represents the style, or 

 may be the generally wanting labellum-stamen. 



2°. With the gynostemium have grown together two portions 

 showing the characteristics of the labellum. The stigmatic sur- 



