74 
Chrysoglossum ornatum Bl. 
Habitat Sumatra, Java. 
Coll. 1902. 
Mr. Smira 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- 
bellum 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 Ludl. 
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- 
