54 



NEW PLANTS, ETC., 



3. OxciDiuM LURiDUM ; alratum. 



Collected by Hartweg' for tlie Horticultural Society at 

 Tampico. 



AVhether or not O. luridum is really a mere variety of the 

 Carthagena Oncid becomes moi"e and more doubtful as our 

 knowledge of such plants extends. In the present instance it is 

 unnecessary to open that question, the plant now mentioned 

 being undoubtedly a veiy fine form of the lurid Oncid, whatever 

 the relation of the latter to the Carthagena Oncid may finally 

 prove to be. With the habit of tlie common form of the species 

 tliis combines flowers smaller than usual, very flat, with olive 

 and rose-colourefl sepals and petals, and a rich crimson li[) 

 furnished at the ba-^e with 5 purple-black tubercles, four of wliicli 

 surround the fifth ; of these tubercles tlie central and two anterior 



Onriclium luridum; atrafum. 



