Odontoglossum mulus Holfordianum is a compact-growing evergreen plant; its 
long arching spike of bloom and large showy flowers make it very attractive 
in a collection. Messrs. Low and Co., of Clapton, may be congratulated upon 
being the first to introduce O. mulus to cultivation, and this, a superior form of 
the same plant, is ever welcome. In its native home it occupies a wide range, 
and is found at between 7,000 and 9,000 feet elevation, so that it is a thoroughly 
cool plant. It requires to be potted in well-drained receptacles, using for soil, peat. 
that has been well beaten to remove the earthy parts, and to this may be added 
some chopped sphagnum moss, the whole to be made very firm and hard. The plant 
should be elevated a little above the rim of the pot, and during the growing 
season an abundant supply of water will be necessary, but in the dull winter 
months less should be given; yet at no time in the year should the plant be 
dried. 
Care and attention must be given these plants during the hot summer months, 
as we have found this species and its near allies to be extremely subject to the — 
attacks of thrips and red-spider—the first, doubtless, encouraged by want of ventilation, 
and the second through the atmosphere being kept too dry. 
Tue Roya Horricutturat Socrery’s EXHIBITION IN THE TEMPLE GARDENS, May 29th 
and 30th, 1891.—This show, opened by the Princess Christian, was a remarkable success, 
and in the display of Orchids far exceeded anything that has hitherto been seen in 
public. Taking the amateurs’ groups as they stand, we come to that of Sir 
Trevor Lawrence, Bart., M.P., Burford Lodge, Dorking. This group was very fine, 
and Mr. White may well be proud of the condition in which the plants were staged. 
Some of the finest plants in the group were the pure white Cattleya. Wageneri, 
stained only in the lip with yellow; C. Schrodere, well flowered and deliciously 
scented; Cypripedium grande atratum, which, as its name implies, is a very dark 
variety of this hybrid; C. Wallisii, and a fine spike of C. Rothschildianum. In 
Masdevallias we have a richness of colour produced by no other: plants in the order, 
and here were very fine examples of M. Harryana miniata, with brilliant red flowers ; 
M. Harryana Bull’s Blood, rich deep crimson; M. Harryana sanguinea, deep blood 
colour, and many others. A fine nearly white form of Miltonia (Odontoglosswm) 
vexillaria, called Fairy Queen, and Mawzillaria Sanderiana were noticeable. Baron 
Schroder, The Dell, Egham, also showed finely, his group comprising Odontoglossum 
Pescatorei Veitchianum, a wonderful plant, perfectly unique; Aérides Williamsii (spike 
only), a pure white form of A. Fieldingii; Masdevallia Veitchiana, with twenty-seven 
flowers of large size and intensely rich colour; Cattleya Skinneri, very fine, with thirty- 
nine spikes; a white variety of C. Mendelii, which, however, did not appear to us quite 
as pure as Blunt’s variety ; Odontoglossum excellens, a charming form; O. Wilckeunum, 
O. crispum Bonnyanum, Calogyne pandurata, and many other gems, of which Mr. 
Ballantine may well be proud. Mr. Salter, gardener to T. B. Haywood, Esq., Woodhatch 
Lodge, Reigate, staged a very pleasing group, composed of Cypripediums, Masdevallias, 
(Continued under Plate 430.) 
