| Occasionally, for unknown reasons, a unifoliate Cattleya will produce a growth with two leaves, and the opposite is true. |
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| Even in unifoliate leaves, the initial larval tunnels are rarely seen; they become visible only later when they turn brown. |
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| The shape of the base of the unifoliate leaves is well defined, but there are certain variations among the same cultivar. |
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| Most of the above mutants have originated spontaneously and in most cases all the leaves were not striotly unifoliate. |
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| Streptocarpella flowers are occasionally produced by the cotyledon, suggesting that the evolution of the unifoliate condition evolved from ancestral plants that could develop facultatively. |
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| We recorded the timing of germination, unifoliate development, and first trifoliate development. |
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| Pseudobulbs ovoid, somewhat laterally compressed, enclothed basally in some leafy sheaths, usually unifoliate. |
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| Stem samples consisted of one centimeter size fragments immediately underneath the base of the unifoliate leaves. |
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