SELECTION OF GREENHOUSE AND FRAME ORCHIDS. 627 



moisture is required. It is a good plan, after this growing 

 and flowering season is past, to place the plants in rather a 

 shady part of the garden, and syringe them occasionally, but 

 not to keep them too moist, as they may probably perish if 

 allowed to get dry at any time. The most suitable time for 

 potting them is just as they are beginning- to make roots, 

 which is usually in the months of January and February. 



These plants are easily propagated, as they throw up 

 suckers in abundance. These should be left till well rooted, 

 and then be taken off and potted in the material recom- 

 mended for established plants ; after which they must be 

 kept moist, and in the shade, until they make fresh roots. 

 When they become established, place them near the light, 

 and apply more water to the roots. What they principally 

 require is coolness and moisture at the roots, and a good 

 season of growth during the winter months. The late C. 

 Leach, Esq., of Clapham Park, grew the D. grandiflora in 

 cold pits, and we never saw any shown in better condition 

 than his plants were, which had been thus grown by him for 

 years with undeviating success. 



Disa Barellii, Hort. — This is a showy and handsome species 

 in the way of D. grandiflora. The flowers are orange- 

 scarlet with the lip of a lighter shade of the same colour and 

 marked with crimson veins. It should receive the same 

 treatment as D. grandiflora. Fig. — Floral Mag., 2 ser., t. 

 104..— South Africa. 



Disa crassicornis, Lindhy. — A very distinct and handsome 

 species, which was first flowered in the Glasnevin Botanic 

 Gardens in 1879. The stems are robust, leafy, one to two 

 feet high, the leaves lanceolate much acuminate, and the 

 raceme of flowers terminating the stem about a foot high 

 bearing eight flowers, which are white spotted with deep 

 purple, the hood conical, ending in a long slender spur. It is 

 an extremely rare species, and flowers in September. Fig. — 

 Bot. Mag. t. 6529. Syn. — Disa megaceras [Hook, fil.). — 

 South Africa. 



Disa grandiflora, Linn. — This fine plant attains the height 

 of a foot or eighteen inches, bearing on the stems numerous 

 lanceolate acute leaves, and at the top from two to five of its 

 beautiful scarlet flowers, which are three to four inches 

 in diameter, with the large spreading lateral sepals crimson, 

 and the dorsal one paler on the outside, and within bluish 



DD 2 



