May, 1922.] THE ORCHID REVIEW. 14k 
ZYGOPETALUM (BOLLEA, PESCATOREA, ETc.) 
N all representative collections of Orchids there are at least three main. 
divisions in which the plants are cultivated: East Indian, or hottest 
house, intermediate, and cool. Branching from these are many sub- 
divisions, consisting of plants which require a somewhat different treatment 
to the other occupants of the house in which they may be placed. For 
instance, in many gardens there are, besides the divisions above mentioned,. 
a Cattleya house, a Mexican house, a Dendrobium house, a Masdevallia 
house, etc. Even with such additional structures at hand it is sometim es- 
difficult to find the right place for every class of Orchid. It may bea 
question of heat, of moisture, of air, or of light, and some plants may 
appreciate one or the other, but not the whole. Some may like the heat and 
moisture of the Dendrobium house, but the strong light would be objection- 
able, and the plants fail to thrive in it. The grower therefore selects for them- 
a position in some part of a house where their requirements may be satisfied. 
without interfering with the welfare of the other inmates; by so doing, many 
plants which come from various parts of the world may be grown 
successfully. 
One very difficult sub-division is formed, comprising the sections of 
Zygopetalum known as Bollea, Huntleya, Pescatorea, Warscewiczella. 
Kefersteinia, Batemania, and Chondrorhyncha, all of which possess rhizomes,- 
only. For many years these beautiful Orchids have baffled cultivators, and 
it is a general experience that it is very difficult to obtain reliable 
imformation respecting their geographical stations and the precise conditions 
under which they thrive in their native habitat. The following imformation,, 
which I obtained from a gentleman who had collected and successfully 
imported and established many of these plants, may be of some interest and 
assistance to the would-be cultivator. ; 
The plants in question grow in moist shady woods, where the direct sun-: 
shine never reaches them, and generally in very unhealthy climates. In the 
dry season the dews at night are exceedingly heavy, and the trees are almost 
always dripping with moisture. From this it is easy to understand what. 
the difficulties must be to get these plants home alive. Chondrorhyncha- 
fimbriata is mostly found on the ground growing in masses in decayed. 
vegetable matter. All of these plants generally flower at the begining and- 
during the rainy seasons. The plants when collected are partially dried 
before packing to prevent rotting in transit, but not too much, in order that 
they may resist the journey. Bnt even when the greatest care is taken in 
this respect large numbers arrive in dead condition, and the survivors- 
mostly in a very dry state. It is indeed rare when buying small bundles of 
imported plants at sales to obtain more than a few live rhizomes. When- 
