tion are hardly surpassed in health by anybody's. Arpo- 

 phyllum is reported to exist there, with many new species 

 from Oaxaca. 



Mr. Skinner, who discovered the species, has been so kind 

 as to give us the following information upon that subject. 



" The Oncidium -microchilum I first found on the top of 

 the 'Cuesta' of Puentezuelas, some thirteen leagues from 

 Guatemala, and sent it to Mr. Bateman in 1838. It was 

 growing on a bare rock, with a quantity of dead leaves and 

 grasses about its bulbs, and its roots woven into the interstices 

 of the rock and mould about it ; very much exposed to the 

 sun, except during the middle of the day, when a ledge of 

 rock seemed to afford it a little shade. I afterwards found 

 it in great abundance on the rocky banks of the river Micha- 

 fcayal, from whence the present one now flowered came ; it 

 was sent to Mr. Harter and Mr. Clowes in 1840, and arrived 

 in June of that year. I never saw it except in such situations, 

 generally exposed, and always among rocks. It is very 

 fragrant ; and in its native habitat I have always observed 

 the sepals and petals darker and more marked than this now 

 flowered here. The temperature generally of the above habi- 

 tats is 68° to 70° ; and, from being exposed, cold at nights." 



Fig. 1. represents a side view of the lip ; Q. a front view 

 of the same part. 



It may be potted in turfy heath-mould, mixed with a few 

 pieces of small potsherds, which will causte superfluous water 

 to pass off freely . The pot should be half filled with potsherds, 

 broken smaller towards the top, and the soil considerably 

 elevated above its brim. During the summer months, while 

 the plant is in a growing state, plenty of water should be 

 given, and the temperature allowed to rise to 80° by day, and 

 tall to 68° at night— giving a slight shade in bright sunny 

 weather. In the winter season very little water is required, 

 and the temperature may be allowed to fall as low as .50° 

 or 55°. 



