120 THE ORCHID REVIEW. 
generally can be traced to over-watering, and when once contracted remains 
in the system for a considerable time. Liquid manure should not be applied 
until the new growth is far advanced, about July; then, if the plants are 
healthy, a weak solution is beneficial. 
Thunias admit of easy culture, but they are not so easy to flower satis- 
factorily, though when well flowered they are most graceful and beautiful, 
though, unfortunately, the flowers are rather short lived, but the small 
amount of trouble given for their successful cultivation counterbalances 
this defect. In a previous calendar I stated that ours are grown in full 
sunshine in the Mexican house; not on any account are they shaded. They 
should be repotted now in exactly the same manner as advised for Calanthes, 
and in similar compost, with the exception that four strong pseudobulbs 
should be placed in a 32-sized pot at equal distances apart. Water also as 
above, though very little indeed is needed during the early stages of growth, 
or they will not bloom freely. Like other occupants of this house, they 
are slightly syringed overhead during the evening after a day’s hot sun in 
summer. Under this treatment Thunias should grow from eighteen inches 
to two feet in height only, and, if the pseudobulbs are of sufficient size, each 
of them should produce a large truss of beautiful blossoms. When bloom- 
ing is past, the plants should still occupy a similar position and receive 
water as usual until August, when it should be gradually withheld. Apply 
liquid manure as advised for Calanthes. 
Anguloas I find grow extremely well in the cool house if given a light 
position. They are just now pushing new growths and flower-buds simul- 
taneously, and at that stage are best repotted, as if delayed until flowering 
is past the new growth is too far advanced. They are best grown in pots 
about half filled with drainage, in a compost consisting of two parts of 
peat to one of sphagnum, with a liberal addition of silver sand. Anguloas 
are also greatly assisted to make large pseudobulbs by applying weak liquid 
manure during growth, and these are necessary if successful blooming is 
expected. I find it a good plan after repotting to place the plants in the 
intermediate house for a few weeks, in order to encourage and assist the 
new growth. 
Cattleyas are, perhaps, on the whole, the most beautiful of all Orchids, 
and this, together with their kind and easy cultivation, causes them to take 
no secondary place in popularity. They are, comparatively speaking, cool 
growing Orchids, requiring only an intermediate temperature to luxuriate. 
Cattleyas of the labiata type are to be had in bloom each month of the 
year. C. Percivaliana is the first to bloom, and opens its lovely flowers 
with richly coloured lip in January. This species should be repotted now, 
and it must be grown in the Mexican house, where it gets an abundance of 
sunshine, otherwise it does not bloom satisfactorily, although free enough 
to form flower sheaths. After repotting, however, it is best to keep them a 
