61 



agreeing with it in its short non-clavate sepals and petals, and 

 its flattish labellum, from which it differs by the calli being in 

 two rows, not continued to the point of the labellum, and by 

 their shape, also by the simple margin to the labellum, and by 

 its broadly ovate outline. 



A few years ago Mr. R. Fitzgerald personally explored the 

 neighbourhood of Adelaide in search of orchids, and with the 

 result that six species previously undescribed were made scien- 

 tifically known. Of these there are two Caladenias — C. 

 leptochila and C. reticulata — both of which have sepals with 

 long points, clavate, and glandular ; and are therefore only 

 distantly related to the species herein described. The former 

 is easily recognisable by its narrow- oblong labellum ; the 

 latter, which externally resembles G. dilatata, has the labellum 

 less deeply cut, and reticulated with raised veins (as in the 

 section fihlebochilus, Benth., to which C. Cairnsiana belongs). 



ErLANATION OF PLATE II. 



1. Side view of the whole plant ; nat. size. 



2. Flower seen from the front ; slightly enlarged. 



3. Lateral sepal ; 4, Petal; 5, Labellum. All enlarged two diameters. 



