THE MOST USEFUL ORCHIDS 147 



0. Vuylstekea\ O. Gladys [0. cirrhosum x 0. spectabiie), O. 

 GooDSONi [0. Uro-Skinneri x 0. nobile Cbarlesworthit)^ O. 

 Grogani^ [0. Edivardii x 0. Uro-Skinneri)^ O. Halli- 

 XANTHUM (0. Halliiy.0. Kegeljam\ O. hibernicum [0. Hallii y. 

 0. hastilabiuni)^ O. Hyeanum (0. Harryanum x 0. luteopur- 

 pureum\ a fine hybrid, exhibited as 0. Souv. de Victor Hye de 

 Crofn ; O. illustre [0. Vuylstekei x 0. armainvillierense var. 

 ardentissimum), O. Lairessei [0. Cervantesii y. 0. Edwrdii), O. 

 Lawrenceanum (0. Rolfea x 0. triumphans\ O. mirificum ((9. 

 crispum x 0. sceptrum\ O. mirum [0. crispum x 0. Denisonce\ 

 O. Othello (0. Adriance x 0. Harryanum\ O. Smithii (0, Rossii 



X 0. spectabile\ O. Sylvia ((9. cirrhosum x 0. Rolfece\ O. 

 Terpsichore (0. Kegeljani x 0. nobile\ O. venustulum (0. 

 armainvillierense x 0. speciabile), O. Wattianum (0. Harryanum 



X 0. Lindleyanum\ O. warnhamense (0. Hallii x 0. nobile\ and 

 O. Wiganianum (0. harvengtense x 0. Rolfea). 



ONCIDIUM 



It is unfortunate that some of the most beautiful of the 

 Oncidiums do not continue to thrive under cultivation over a 

 period of several years, but the reason for this is probably to be 

 found in the fact that the species flower with great freedom, and 

 their long, branching spikes impose a great strain upon the plants. 

 The grace and beauty of many species is not surpassed by those of 

 any other Orchids, and it is not therefore surprising that the 

 grower is tempted to enjoy them to the full. But this means an 

 enormous tax upon the vitality of the plants, and if the spikes are 

 allowed to remain until the flowers fade, the new growths suff^er, 

 there is an annual decline in vigour, and newly imported plants 



