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- D. hickeyi – main stem, proximally
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- D. hickeyi – main stem, x-sect.
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- D. hickeyi – lateral branch, x-sect.
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- D. hickeyi – lateral branch, dorsal
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- D. hickeyi – lateral branch, ventral
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- D. hickeyi – growth constriction
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- D. hickeyi – habit
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- D. hickeyi – growth habit
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- D. hickeyi – growth habit
