Template:Christensen, 1936

• Christensen, C.F.A. 1936 [publ. 1937] The collection of Pteridophyta made in Hispaniola by E.L. Ekman, 1917 and 1924-30. Kongliga Svenska Vetenskaps Academiens Handlingar, s. 3, 16: 1–93.  
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