364 THE ORCHID REVIEW [ DECEMBER, 1915. 
chief feature is the very large, nearly white lip. Z. Roeblingianum, its 
nearest ally, is a supposed natural hybrid. 
ZYGOPETALUM MAXILLARE, when well grown, is certainly a handsome 
‘species, and several fine hybrids have already been obtained from it. The 
lip of the best variety is of a rich violet blue, which shows well against the 
green and brown of the sepals and petals. Z. maxillare, in its native 
country, grows on the stems of a Tree Fern, its last-made growth being 
immediately under the crown of the Fern fronds. This is generally the 
‘case, as seen by imported specimens, but not always among the smaller 
pieces. Where it does occur it is very remarkable that the two plants 
should grow up at the same rate together, and it is instructive to note the 
amount of subdued light the Orchid must obtain from the spreading fronds 
of the Fern. As the plant is nearly always imported on the Fern, it should 
therefore be allowed to remain attached to it until it has made its first 
growth. Probably by that time it will have overgrown the Fern stem, 
when it will require additional support, and the best thing to do is to 
fasten the whole either to the trunk of a living Tree Fern or to a long piece 
of dead. Suspend the plant in a shady position in the Intermediate house, 
and never allow it to become dry at the roots, but spray the leaves and 
stems lightly overhead every morning, even during winter, and on several 
occasions each day in summer. Mealy bug is nearly always imported on 
the plant, and unless kept well under by brush and sponge will quickly 
bring the plant into a debilitated condition. The rare Z. Sanderianum has 
longer flowers than Z. maxillare, and a very fine pure white lip. 
ZYGOPETALUM HYBRIDS.—The cultural conditions suitable for 
Zygopetalum also apply to Zygocolax, as Z.-c. Veitchii, leopardina, 
Charlesworthii, Wiganiana, and Amesiana, to which may be added the 
distinct Zygonisia Rolfeana. 
All Zygopetalums and the Zygocolax hybrids are liable to the attacks 
of thrips, which are extremely fond of the young foliage, therefore it is good 
practice, whether thrips be present or not, to bring the plants into any 
glasshouse that is being vaporised. 
Mexican Latas.—Of these Lelia anceps forms the principal, and 
includes a whole series of beautiful varieties, as alba, Veitchii, Leeana, 
Stella, Sanderiana, Schroederiana, Schroederze, Amesiana, Chamberlainiana, 
Crawshayana, Williamsii, Percivaliana, and many others. Mention should 
be made of the beautiful L. autumnalis, and its almost pure white variety 
alba, also the pretty small-growing L. albida and L. furfuracea. The two 
latter come from higher altitudes than L. anceps, and require a few degrees 
less heat while making growths, which is also true of L. majalis. When 
- these plants have done flowering, water must be almost withheld, but the 
pseudobulbs should be kept as plump as possible during their period of 
