The Polypodiaceae and grammitidaceae of Ceylon/

Eitemau Tebyg

• The polypodiaceae and grammitidaceae of Ceylon/
  gan: Sledge, W. A.
  Cyhoeddwyd: (1960)
• Organisation and morphogenesis of the vascular system in polypodiaceae /
  gan: Molly, M J
  Cyhoeddwyd: (1984)
• The athyrioid ferns of Ceylon
  gan: Sledge, W. A.
• The dryopteroid ferns of Ceylon
  gan: Sledge, W. A.
• The dryopteroid ferns of Ceylon
  gan: Sledge, W. A.