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Family
Orthotrichaceae (Bryophyta)
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Scientific Name
Macromitrium portoricense R.S.Williams
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Primary Citation
Bryologist 32: 69. 5. 1969 
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Type Specimens
Specimen 1: Isotype -- E. G. Britton 2638
Specimen 2: Isotype -- E. G. Britton 2638
Specimen 3: Type -- E. G. Britton 2638
