_Masdevallia Harryana cœrulescens_, our present subject, was forwarded to us by R. P. Percival, Esq., of Southport, who is forming what will in time doubtless become one of the best collections of these plants in the North of England. Whatever Mr. Percival takes in hand he carries out thoroughly, and this has led him to build separate houses to suit the different classes of Orchids. Now as Masdevallias prefer cool treatment they are best kept in a house by themselves: they require but a small one, as they take up very little room; indeed they will thrive well enough in the Odontoglossum house, for if their few wants are attended to, there are no freer growing plants in cultivation. They increase very fast under good treatment, and soon repay all the care which is bestowed upon them. They last a long time in beauty and make grand exhibition plants, producing also, when in bloom, a charming effect in the houses if intermixed with the various Odontoglots and other cool Orchids. There are so many varieties that some of them will always be in flower, but the best time to see them is from May to July. They are so accommodating to the grower that many wonderful specimens have been produced and exhibited during the last few years. When a plant is found to be too large it may be divided, and the divided portions will go on increasing.
We have found good fibrous peat and sphagnum moss to suit well as material for the potting of these plants. They thrive best in small pots. The roots should not be disturbed too often; when, however, they require fresh material to root in, it must be given them, as they are free rooting plants and prefer to have sweet wholesome soil about them. They must also have good drainage, for they need an abundant supply of water, and by giving them efficient drainage the water passes off quickly without doing any harm, which it would do if allowed to become stagnant about them. The plants should be placed near the light but so as to avoid the sun’s rays. A north house suits them best, as it shields them in summer from the heat of the day, which they do not like, in fact, they should be kept as cool as possible at all times, very little fire-heat being required in winter, and none during the summer. They like fresh air, but in winter cold draughts must be avoided. We find that they will thrive in a heat of from 45° to 50°: even somewhat less would suffice, but the temperature here named is the most suitable. Anyone, therefore, who possesses a small low house could grow them at a trifling expense.