POLYPODIACEAE 



65 



Very closely allied to Davallia denticulata (Burm. f.) Mett., 

 but considered by van Alderwereldt van Rosenburgh to be speci- 

 fically distinct; see Philip. Journ. Sci. 11 (1916) Bot. 108. 



TAPEINIDIUM C. Christensen 



TAPEINIDIUM AMBOYNENSE (Hook.) C. Chr. Ind. Fil. (1906) 631. 

 Davallia amboynensis Hook. Sp. Fil. 1 (1846) 178, t. 56. 

 Dryopteris triplex silvestris I terrestris Rumph. Herb. Amb. 6: 73. 

 Amboina, Lateri, Robinson PL Rumph. Amb. 443, September 9, 1913, 

 in forests, altitude about 250 meters. 



This is probably the correct disposition of the Rumphian spe- 

 cies. Blume thought it was a species of Aspidium, and Hasskarl 

 placed it with doubt under Davallia patens Sw., to which it cer- 

 tainly cannot be referred. 



ATHYRIUM Roth 



ATHYRIUM ESCULENTUM (Retz.) Copel. in Philip. Journ. Sci. 3 (1908) 

 Bot. 295. 



Hemionitis esculenta Retz. Obs. 6 (1791) 38. 



Diplazium esculentum Sw. in Schrad. Journ. 1801 2 (1803) 312. 



Filix esculenta Rumph. Herb. Amb. 6: 67, t. 29. 



This characteristic, widely distributed, and well-known fern 

 is not represented in our Amboina collections. The Rumphian 

 figure is a good representation of the species and is unmistakably 

 Athyrium esculentum Copel. Henschel and Pritzel have re- 

 ferred it to Diplazium malabaricum Spreng., which is a synonym 

 of Athyrium esculentum Copel. 



ASPLENIUM Linnaeus 

 ASPLENIUM NIDUS Linn. Sp. PI. (1753) 1079. 



Phyllitis amboinica I arborea Rumph. Herb. Amb. 6: 82 (haud t. 37, 

 f. 1). 



Phyllitis amboinica II terrestris Rumph. Herb. Amb. 6: 82 (haud 

 t. 37, f. 2). 



Amboina, Ayer putri, Robinson PI. Rumph. Amb. 448, July 28, 1913, 

 epiphytic at low altitudes. 



The descriptions given by Rumphius both apply to an Asple- 

 nium of the nidus group, but perhaps more than one species is in- 

 cluded. The figures are poor, and the one supposed to represent 

 Phyllitis amboinica II terrestris does not agree at all with the 

 plant described; it may be some species of Vittaria or Polypo- 

 dium. The figure supposed to represent Phyllitis amboinica I 

 arborea is almost equally poor for Asplenium nidus Linn., but 

 may have been drawn from a straggling specimen. The form 

 merely mentioned as having fronds much smaller and narrower 



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