TREATMENT PREPARATORY TO EXHIBITION. 73 



warm greenhouse, keeping them slightly shaded during the 

 brightest part of the day. 



Dendrohiums, if they are wanted to bloom later in the 

 season, are very easily thus retarded. Dendrobiinn awhile, 

 D. pulchelhcm, D. siipcrhum, D. densiflorum, D. Farmeri, 

 D. Pierardi latifoUum, D. Wardianuvi, I), crassinode, 

 D. Schroderi, and D. Devoniamim, generally bloom during 

 winter, but we have kept them back until June ; and by 

 having a succession of plants, the Orchid house may be gay 

 with Dendrohiums from January to June. Nearly all the 

 Dendrohiums will bear cool treatment while at rest, and all 

 can be kept for late flowering. To ensure this, place them in 

 a warm greenhouse and give but little water, in fact, only 

 just enough to keep them from shrivelling ; under this treat- 

 ment the temperature should not fall lower than 40°, and the 

 stems must be kept dry, or the flower buds are apt to rot. 

 They should be shaded from the sun, so that the flower buds 

 may not be excited. When the plants are wanted to flower 

 they should be removed to the Orchid house, and still kept 

 shaded from the sun. Ccelogynes, Odontoglossums, Mas- 

 devallias, Oncidiums, Phajtis WaUichii, and P. grandifoUus, 

 Ly caste Skimieri, and many others may be kept back in the 

 same way as the Dendrohiimis. We have had ample proof of 

 this by taking these plants to shows. Thus we exhibited 

 sixty-five specimens in Brussels, and not a plant was injured ; 

 again at Philadelphia, Amsterdam, Cologne, and Oporto we 

 exhibited with the same good results. Our plants were taken 

 more safely than those of exhibitors that lived but a few miles 

 ofi", the reason being that proper care was taken to pack 

 them well and to give no water — in fact, we followed the rules 

 here laid down. 



