211 



of the column, and in the oval glands at base of column 

 (they ar€ globular in clavigtra). From the latter it may be 

 distinguished by the facts : that the calli do not appear on 

 the tip of the labellum, that the label luni is recurved, and 

 that the leaf is not narrow. 



DESCRIPTION OF PLATE XXVI. 



Caladknia gladiolata, sp. nor. 



A. Plant about natural size, showing bayouot-pointod lateial 



sepals. (Lateral aspect.) 



B. Shows dorsal sepal and hini^ed labellum with recurved tip. 



C. Flower, from the front, showing the four rows of crowded 



calli ou lamina. 



[Read September 9, 1907.J 

 Caladenia tuteiata, *^j. loov. 



On October 2, 1906, I read a paper before this Society 

 describing a new Caladeina, found at Blackwood, by Mr. A. 

 Keith Ashby. Only two specimens were available for exami- 

 nation, and, consequently, it was uncertain whether this in- 

 teresting form should be regarded as a hybrid between Cala- 

 dtnia dtforniis and Glossodia major, or whether it was really 

 a new species. Fresh discoveries on August 24 of this year 

 have removed this uncertainty, and I am now able to re- 

 cord an entirely new species, which I have called Ccdadenia 

 tuteiata, on account of the tall sentinel calli which appear 

 to guard the entrance to the column. These calli were de- 

 scribed in my former paper as being about J inch in height, 

 clavate at their free extremities, and standing erect in a row 

 at the base of the column. 



In this supplementary note I would like to add that 

 an examination of further specimens shows a strong ten- 

 dency for these calli to cohere or fuse together. In two 

 specimens they were fused into two broadly-filamented, 

 double-headed calli. In another specimen all the filaments 

 were coherent, forming a vertical plate in front of the 

 column. Such fusions are extremely interesting from a 

 developmental standpoint, as they appear to me to throw light 

 upon the origin of the appendages in the genus Glossodia, 

 which have probably arisen in an identical manner. In four 

 out of five species of Glossodia, the appendages are two in 

 number, with clavate points ; and in the case of one of these, 

 G. intermedia, Fitz., these clavate i^oints arc slightly bifid, 

 indicating their probable origin from four calli. In the fifth, 

 G. major, the top of the single appendage is bifid, but the 



