| The sepals are obtuse to rounded, but never retuse as in some plants of L. racemulosa. |
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| The orbicular-shaped mutant leaves are further characterized by the leaf apex, which is retuse in contrast to the acuminate apex of leaves of wild-type plants. |
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| The dehiscent 2-winged fruit is nearly elliptical, with retuse apical margin.durandi, the fruit is obpyriform with a retuse apex. |
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| Petals narrowly lanceolate, rounded and retuse at the apex, 18-20 mm long, each with a pair of basal appendages, cream tipped with white. |
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