396 ENUMERATIO FILICUM PHILIPPINARUM. 



20. G. prolifera^ Presl Meniscium proliferinn, Siv. — 



Luzon ; [n, 168.) 



21. G. aspera. — Polypodium asperum, Roxh. in herb. Linn. 

 Soc — Luzon; («. 1T2.) 



GoNiopHLEBiUM, Blume ; J. Sm.; Presl. 

 ( Margi n ari a, Presl. ) 



22. G. pallens? Presl.— Polypodium, Blume.— hvizon; 

 («. 203.) 



23. G. suhauriculatum 9 Presl. — Polypodium, Blume — 

 Luzon ; (it. 244.) 



NiPHOBOLUs, Kavlf. 



24. N. nummular ifol ins. — Acrostichum nummularifolium, 

 Siv. ; Blume. — Luzon ; {n. 246.) 



25. N. varius, Kaulf. ; Blume; J. Sm. — Luzon; («. 17, 67, 

 88, 93, 135, 240.) Corregidor ; {n. 286.) Samar; (w. 

 323.) 



Ohs, — The synonymy of the species of this genus appears 

 to me to be in a state of great confusion, which is in some 

 measure owing to several authors having characterized two 

 or more species, from the different forms common to one spe- 

 cies only. I am led to believe that such has been the case 

 on comparing the specimens bearing the above Nos. with one 

 another, and with others in my collection, and although their 

 extremes of form appear very different from each other, yet I 

 cannot bring myself to consider them otherwise, than as mere 

 variations of one species brought about by local circumstances 

 attending their growth. 



26. N. acrostichoidcs, J. Sm.— Luzon ; {n. 127.) 



27. N. sphcerocephalus, Hook, et Grev Malacca; (n. 372.) 



28. N. splendens, J. Sm.— Samar; {n. 331.) 



DicTVoPTEnis, Presl. 



29. D. macrodonta, Presl Polypodium macrodon, Beinw. 



— Polypodium confluens, fVall. — Luzon; (n. 9, 114.) 



30. D. pteroides, Presl. — Polypodium pteroides, Presh 

 reliq, Haenk,— Luzon \ {n. 171,)' 



