bristles {fig. 1. a.), the lateral cirrlii are not formed, the 

 curved horn is wanting, and the helmet-like form in the lip 

 is completed. All these transitions were perfectly shewn in 

 the Duke of Devonshire's specimen, and have been faith- 

 fully copied by Miss Drake. On the same specimen was 

 also a case of a flower with two lips, as is represented at 

 figure 2. 



The necessai'y consequence of this is, that the supposed 

 genera Myanthus and Monachanthus must be restored to 

 Catasetum, and I have no doubt now, although no proof 

 has been seen of it, that Mormodes must share the same fate. 

 But which of the species have their masks on, and which 

 shew their real faces, I certainly will not at present presume 

 to guess. 



Mr. Schomburgh has lately sent to the Linnaean Society, 

 from Demerara, a specimen of another Monachanthus, 

 sporting to a crested Myanthus ; of which, I presume, some 

 account will in due time be published. And I am ac- 

 quainted with the following e.\ample of this tendency in a 

 very different genus. 



In August 1836, Mr. Willmer, of Oldfield, near Bir- 

 mingham, sent me a specimen of a Cycnoches, which had 

 broad petals, a short column, hooded and dilated at the 

 apex, and a broad roundish lip, gibbous at the base, and 

 with its stalk much shorter than the column. It was, how- 

 ever, destitute of scent, while Cycnoches Loddigesii has, as 

 is well known, a delicious odour of Vanilla. I had no 

 doubt of its being distinct species, and called it C. cucullata. 

 But in the autumn of 1836, in the garden of the Horticul- 

 tural Society, a plant of Cycnoches produced from the 

 opposite sides of the same stem two racemes ; those of 

 one raceme were the well-known fragrant flowers of Cycno- 

 ches Loddigesii, and of the other the scentless flowers of 

 the new C. cucullata. 



