Marcu, 1907.] THE ORCHID REVIEW. 79 
one part leaf soil, mixed together with some small crocks and sand. I do not 
advise disturbing plants that are in good condition. If the present -pot is 
large enough to carry the plant another year, and the compost is sound, 
some of the surface material may be renewed without any check being 
given. Vigorous plants that only require potting on account of the size of 
the pot should be carefully taken out, smashing the pot rather than break 
any roots, and not disturbing the ball more than possible beyond the re- 
moval of some of the surface soil. Plants showing signs of deterioration 
should be carefully taken apart, cutting off all useless back bulbs, and 
potting them in the smallest pot possible. Place a few crocks first, then 
complete the drainage with rhizomes. Weakly plants with little root re- 
quire more drainage than the stronger ones, and the grower must decide 
plant by plant how much drainage is needed. Pot fairly firmly, especially 
the strong healthy plants and those that should not want potting again for 
at least two years, leaving enough room fora surfacing of chopped sphagnum. 
They will not require much water till the growths lengthen out. Frequent 
dampings between the pots will be very helpful in giving them a good start. 
ODONTOGLOSSUM CITROSMUM.—After their long rest growth-activity is 
now apparent, and rather more water should be given than they have been 
receiving since the completion of last season’s growth. Still allow the plants 
to become well dry before watering till the flower spikes show, and then 
the supply may be increased ccnsiderably. 
MILTONIA VEXILLARIA.—Plants growing well should now be afforded more 
‘water, maintaining this course right up to the flowering time. On favour- 
able days spray them over head, and damp frequently between the pots. 
'  QponToGLossum HousE.—During bright days the Odontoglossum 
house should be sprayed over early enough for the leaves to dry before night. 
HABITAT OF ODONTOGLOSSUM CRISPUM. 
(Concluded from p.. 37). 
3. CHIQUINQUIRA REGION.—The group of mountains which extend between 
Simijaca and Puripi and in the direction of Sabaya, constitutes what I 
consider the third region. The O. crispum coming from here is known in 
commerce under the name “‘ Chiquinquira type.””’ The flower, although of 
fairly regular form, is generally smaller than that coming from the Pacho 
district, but it completely makes up for this little defect by the length of 
the floral stalks, which often extend more than six inches beyond the leaves 
‘before the formation of the first buds. This peculiarity ought to be taken 
into serious consideration by those who devote themselves to the special 
methods of culture for cut flowers, for it is incontestable that long and 
flexible flower-stalks are much preferred by florists who wish to give to 
‘their creations a real artistic stamp. 
