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The Z. Mackaii group grow well under pot culture. One or two species with creeping rhizomes, like Z. maxillare, thrive best on sections of tree fern, osmunda rhizome, or in baskets. A good compost consists of equal parts of chopped sod, peat-fiber and sphagnum moss, well mixed and interspersed with pieces of rough charcoal, about one-half of the pot space being devoted to clean drainage material. After distributing the roots, the compost should be worked in carefully but not too firmly, about them, leaving the base of the plant even with, or just above, the rim of the pot. Repotting should be done when the plants show new root-action. The temperature should range about 60° F. by night and 65° to 70° by day in winter, and in summer as low as possible, with free ventilation during inclement weather. A cool, light location in the cattleya department is favorable. The compost should be kept in a moist condition at all times. The plants are propagated by cutting through the rhizome between the old pseudobulbs at a good eye, potting up the parts and removing them to a rather higher temperature until they start into new growth.
The Z. Mackaii group grow well under pot culture. One or two species with creeping rhizomes, like Z. maxillare, thrive best on sections of tree fern, osmunda rhizome, or in baskets. A good compost consists of equal parts of chopped sod, peat-fiber and sphagnum moss, well mixed and interspersed with pieces of rough charcoal, about one-half of the pot space being devoted to clean drainage material. After distributing the roots, the compost should be worked in carefully but not too firmly, about them, leaving the base of the plant even with, or just above, the rim of the pot. Repotting should be done when the plants show new root-action. The temperature should range about 60° F. by night and 65° to 70° by day in winter, and in summer as low as possible, with free ventilation during inclement weather. A cool, light location in the cattleya department is favorable. The compost should be kept in a moist condition at all times. The plants are propagated by cutting through the rhizome between the old pseudobulbs at a good eye, potting up the parts and removing them to a rather higher temperature until they start into new growth.
Z. Armstrongiae – Z. Mackaii x Z. rostratum.— Z. Ballii, Rolfe. Fls. white, the sepals purple-tinged, the petals and lip blotched with bright rose-purple. G.C. III. 27:149. G.M. 48:365.—Z. Burtii, Benth.- Huntleya.—Z. chloranthum, Kranzl. Fls. small for the genus, greenish, fragrant, hairy inside.—Z. coeleste, Reichb. f.- Bollea.—Z. discolor, Reichb. f.-Warscewiczella.—Z. Lalindei, Reichb. f.-Bollea.—Z. Patinii, Reichb. f.-Bollea.—Z. Prainianum, Rolfe. Sepals and petals dusky brown, with obscure green stripes on petals; lip white, streaked with rose-purple. Peru. B.M. 8610.—Z. Roeblingianum –Z. rostratum X Z. maxillare. G.C. III. 34:227.—Z. violaceum, Reichb. f.-Bollea.—Z. Wendlandii Reichb. f.-Warscewiczella.
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