134 THE ORCHID REVIEW. [Jung, rox6, 
The winter-flowering M. tovareusis may still be supplied with new compost 
if the old soil is at all decomposed. Masdevallias soon decline if allowed to 
remain in a decomposed material, in fact neglect as regards repotting of any 
Orchid is the first steps to deterioration. 
ODONTOGLOSSUM CITROSMUM AND O. UROSKINNERI. — Plants of 
these two species may have attention should they be in need of new rooting 
material. The pots or pans must not be too large, and tne drainage must 
be perfect, as whilst in full growth and the plants well-rooted they require 
abundant supply of water. The usual Odontoglossum compost is quite 
suitable, and the plants must be potted firmly. O. citrosmum delights ina 
light position in either the Cattleya or Mexican house, whilst O. Uroskinneri 
thrives best at the warm end of the cool-house. . grande, Insleayi and 
others of this section may be repotted at this season should they be in need 
of it. They are best accomodated in the Cool house during the hottest part 
of the year, and removing them to the Intermediate house for the winter 
months. There are many plants which succeed much better under these 
conditions than they do if allowed to remain in the Cool house the whole 
year round. 
CYPRIPEDIUMs of the bellatulum section, which include many plants of 
sterling merit, should have attention as regards new rooting material should 
the compost in which they are growing be at all decomposed. These plants 
are best grown in pots, which must be well drained Well rooted 
specimens in good material must not be disturbed, as they resent this more 
than any other section of Cypripedium. Failures to grow them 
satisfactorily is usually attributable to the excessive use of the water pot. 
Whilst in full growth they delight in a copious supply, but whilst at rest 
much less will suffice. Their thick fleshy leaves and roots are quite 
different from those of the ordinary green-leaved Cypripediums, a 
therefore require a different treatment, They appreciate a drier materia 
to grow in, and they are capable of withstanding more drought, which facts 
should be bourne in mind when dealing with their cultivation. These 
plants succeed either in a compost made up almost entirely of loam fibre, 
with some small pieces of mortar rubble added, or they may be grown it 
the ordinary Cypripedium compost. The plants must be potted rather 
firmly, and should be elevated up to the glass in a warm Intermediate house 
The secret of successful culture is to give water at the roots only when the - 
compost is really dry, and never to apply water overhead. These remarks 
also apply to C. niveum, C. Godefroy, and all their hybrids, which até 
usually considered somewhat refractory subjects. 
Cd:LoGYNES.—Such plants as C, Dayana, C. asperata, and others that 
produce their flowers at this season, should be repotted if necessary when 
their growths are well advanced and about to push forth roots. These 
