340 



ORCHIDS. 



A. Odontoglossum Warnerianum. Mexico. 



Bat. Odon., 3. 



War. Orch., 2, 20. 



B. R., 33, 20. 



A rare and elegant species ; sepals and petals pure 

 white, with a few brown spots \ lip white, shaded with 

 rose, with yellow blotch at the base. Scape three to five- 

 flowered. 



A. Odontoglossum Warscewiczii. Costa Rica. 



B. M., 6163. 

 Reich. Xen., 81. 



A species of wonderful beauty, and the rarest of all. 

 Flowers white, with deep crimson-pink centre j large, 

 three to five on a spike. 



Beautiful as are the former species, this last discovery 

 bids fair to excel them all. 



Odontoglossum Weltoni. See Miltonia Warscewiczii. 



The Odontoglossums are " by no means plants of easy 

 culture ; most of them are cool Orchids, and perish 

 if kept hot. The heat of our summers is an almost in- 

 superable obstacle to the successful cultivation of the cool 

 species, and as yet no means has been found to overcome 

 this difficulty. Exposure to our summer sun is certain 

 death to the delicate species. Perhaps the best way to 

 attempt their culture would be in houses facing the north, 

 from which during the hottest weather the lights could be 

 removed and replaced by canvas on rollers. They all 

 need free air, clean potting, and are impatient of sour 

 soil. 



