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Key to Tomostima

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1 Inflorescence congested, the fruiting portion ca. 1.5 cm long; trichomes of the upper leaf surface simple or once-forked; pedicels glabrous (rarely with a few scattered trichomes)
1 Inflorescence not congested, the fruiting portion mostly > 2.5 cm long; trichomes of the upper leaf surface dendritic; pedicels densely pubescent.
  2 Silique ca. 3-6× as long as wide, 5-15 mm long, 1.2-2.2 (-2.8) mm wide, pubescent with simple or branched trichomes
  2 Silique ca. 2× as long as wide, 5-8 mm long, 2.5-3.7 mm wide, pubescent with simple trichomes