lanceolate acuminate withered and blackened towards the apex, 

 longer than the flowers ; perianth more expanded and more erect 

 than in the rest of the genus ; odd sepal oblong, very obtuse; 

 side sepals anticous, joined for nearly their whole length into a 

 single trowel- shaped emarginate piece ; petals somewhat square, 

 concave, the outer angles rounded, margin crenulate ; limb of 

 the lip linear acute deflexed, appendage widely clawed at the 

 base, then subspathulate and curved forward above, keeled in 

 front; column of tw^o horizontal strap-shaped arms standing 

 edge -wise closely applied to each other and curving forward, the 

 outer one bearing at either extremity a cell of the anther, the 

 inner bearing the rostellum with the gland ; stigmas 2, situate 

 in front upon the inner process, one upon either side of the lip at 

 its base near the point of its attachment. 



Described from several living plants. Colour of the flowers 

 smoky or ashy-brown, with darker stripes on the petals ; limb of 

 the lip pale green, the appendage dark emerald green, anther- 

 cells rosy, rostellum purple. The flowers are about 5 mill, long, 

 and 7 mill. wide. The species is a very distinct one and little 

 resembles any of the other Corycia. The hood, composed, as is 

 usual, of the odd sepal and the petals, is not bent down and con- 

 tracted as is generally the case, but stands nearly erect and 

 somewhat expanded, as in Pterygodium. It must be admitted 

 that this similarity of perianth in such species as the present 

 one and Pt. carnosum almost breaks down the boundary of the 

 two genera ; nor does the column help us much to form a new 

 one, since there are considerable differences of structure amongst 

 the species of each genus. In a general re-arrangement of the 

 genera of Orchideae both Corycium and Pterygodium should, 

 perhaps, be united with Ceratandra. 



