DISA. 235 
as the offsets find their way through the side holes 
quicker and better than when they have to push their 
way through to the surface. The plants are moderately 
and carefully watered until they are in active growth— 
say, from March till flowering time, when they must 
receive abundance of water overhead with a rose-pot. 
On very warm days it will be necessary to apply water 
three or four times a day. When the flowers are over, 
less water is given, but the plants are never allowed 
to approach dryness at the root. The Disa is_ propa- 
gated from offsets and by division of the roots.” To 
this we need only add that in winter the temperature 
ought not to fall lower than 4odeg. <A position in a 
house which suits cool Odontoglossums will be found 
agreeable to Disas. At Kew, where D. racemosa is suc- 
cessfully grown, the treatment it gets is similar to that 
above recommended for D. grandiflora. 
D. grandiflora.—Rootstock tuberous. Stem erect, un- 
branehed,, -1f€; \to')/2ft. thigh, ‘leafy. _ Lawer leaves .6in. 
long, and dark green; the upper ones smaller, those 
near the flowers being reduced to bracts. Flowers 
terminal, one, two, three, or even more, being produced 
on each stem; upper sepal ovate, gin. long, hooded, 
pointed at the apex, spurred at the base, deep rose- 
coloured, with carmine veins; side sepals ovate-oblong, 
2tin. long, brilliant carmine-red; petals and lip small, 
tinted orange. In some varieties the sepals are orange- 
tinted, and others have the hooded sepal coloured rose- 
purple. Introduced from Table Mountain, near Cape 
Town, in 1825. Syn. D. unifiora. 
Plate (for which we are indebted to the Editor of the 
. ‘Gardeners’ Chronicle”) ; Botanical Magazine, t. 4073. 
