344 THE ORCHID REVIEW. [NOvEMBER, 1923. 
Balliz, Z. rostratum, and Z. Rceblingianum, should be given a similar 
position in the house The surface layer of sphagnum moss should be 
sprinkled frequently to keep it in a green, healthy condition. Plants of the 
Bollea section, such as B. ccelestis, Pescatorea Lehmannii, P. Klabochorum 
together with Chondrorhyncha Chestertonii, and C. fimbriata, are now 
pushing new roots, and any necessary repotting or resurfacing may be done 
at this period. A suitable rooting medium may be composed of equal parts 
sphagnum moss and osmunda fibre, with a sprinkling of crushed crocks to 
make it porous. Pots or pans without side holes are the most suitable 
receptacles. Press the compost moderately firm and finish off with a layer 
of live sphagnum moss over the surface. Z. maxillare and Z. Gauteri are 
also producing new roots, and may be given similar attention. These 
Orchids have a rambling habit, and are not suitable for growing in pots or 
pans, they are best fixed on a portion of the stem of a tree-fern. If 
necessary, the rooting space may be extended by wiring another piece of 
stem on top of the old block. The roots should be kept moist at all times. 
Z. maxillare thrives best when suspended in a moist shady position in the 
warmer part of the intermediate house. 
PHAL#NOPSIS INTERMEDIA.—This Phalenopsis was not only the first 
artificial hybrid of the genus, but the first successful experiment undertaken 
to prove the origin of a wild plant. In 1853, Phalenopsis intermedia 
appeared in an importation of P. Aphrodite from the Philippines, and 
Lindley then suggested that it might be a natural hybrid between that 
species and rosea. In order to determine the correctness of this opinion, 
Seden crossed P. rosea with the pollen of P. Aphrodite, and when one of 
the resulting seedlings flowered in 1886 it proved identical with the wild 
P. intermedia. 
WATERING PANS AND BASKETS.—When visiting one or two amateur’s 
collections I was rather struck by the different ways in which water was 
applied to the plants growing in pans and baskets suspended from the roof. 
In one case the gardener mounted a pair of steps and applied water with a 
can, in such quantities that it deluged the plants on the staging beneath. 
In another house I noticed that the pans had been taken down and dipped 
in the tank until they were thoroughly moistened, but instead of being left 
to drain, they were quickly re-hung, so that water fell on to other plants 
beneath. Such careless treatment may well account for the decay that 
frequently starts near the flower-sheath, and which is generally attributed 
to a low temperature at night. If these plants cannot be suspended 
directly over the path, they should be allowed to drain before being 
re-hung.—‘‘ Observer.” 
