ILLUSTRATIONS. 



[Photographs by E. Cortes.] 



Plate I. A, Ophioglossum intermedium Hook. B, C, Ophioglossum pedunculosum 

 Desf. 

 II. Botrychium japonicum (Prantl) Underw. 



III. Helminthostachys zeylanica (L.) Hook. 



IV. Angiopteris cartilagidens Christ. 

 V. Maeroglossum alldae Copel. 



VI. Archangiopteris hcnryi Christ. 

 VII. Marattia, ternatca deVriese. 

 VIII. Christensenia cumingiana Christ. 

 IX. Marsilea crenata Presl. 

 X. A, Salvinia natans (L.) All. B, Azolla africana Desv. 

 XI. Osmunda regalis L., var. japonica (Thunb.). 

 XII. Lygodium merrillii Copel. 



XIII. A, Schizaea dichotoma (L.) Smith. B, Schizaea digitata (L.) Sw. 



XIV. Gleichenia laevissima Christ. 



XV. Ceratopteris thalictroides (L.) Brongn. 

 XVI. Matonia foxicorthyi Copel. 

 XVII. Phanerosorus sarmentosus (Baker) Copel. 

 XVIII. Cyathea atropurpurea Copel. 

 XIX. Balantium copelandi Christ. 

 XX. Dicksonia blumci (Kze.) Moore. 

 XXI. Cibotium cumingii Kze. 



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