188 E. B. Copeland: 



Christopteris Copeland n. gen. 



Rhizomate repente, stipitibus ab oo articiilatis; frondibus 

 valde biforinibiis, storilibus isosc'eli-triaiigiilaribus aniplis, fer- 

 tilibus in segnienta linearia tripartitis; venis ubiqiie anastumo- 

 santibus, vcnis liberis inclusis; soris linearibus costis proximis 

 parallelis, paginas totas postremo complentibiis , paraphysibiis 

 carentibus. 



Tlii)^ g-eniis is founded tm a jdant collected on Mt. Mari- 

 veles by Dr. Whitfoud and myself, which 1 believe to be 

 identical with that described b}' Christ from sterile material, 

 of Loher's Bengiiet collection, as Polypodiuni (Phymatodes) Sa- 

 gitta. The resemblance of the sterile fronds to P. spectrum 

 Kaulf. is indeed very close, but the character of the fertile 

 frond shows that the real place of the fern is in the Taeniti- 

 deae, uith Thijmoglossiim and Platytaenia. The triangular frond 

 is pteridioid in aspect, and the margin of very young fronds 

 is occasionally inflexed, but not normally so. The genus dedi- 

 cated to Dr. H. Christ, in appreciation of his valuable and ex- 

 tensive work on the ferns of this region. 



1. Christopteris sagitta (Christ, Bull. Herh. Boissier 6. (1898), 199) 

 Copeland. Planta vegetativa ut a Christ descripta, sed vero 

 paleis rhizomatis ca. 8 mm longis; fronde fertili ad basin in 

 segmenta erecto -paten tia tria divisa, segmento medio 8 — 15 cm 

 alto, ca. 3 mm lato, lateralibus paulo brevioribus. 



Luzon Isl., Prov. Benguet, La Trinidad on calcareous 

 stones (LoHER Avithout number), Prov. Bataan, Mt. Mariveles 

 (Copeland), on the mossy trunks of trees (WnrrFORD no. 321). 



Polypodium L. 

 1. Poiypodium Merrillii Co])oland n. sp. ]{hizomatc l)revi, erecto, 

 paleis parvis brunneis vestito; fronde minuta, sessili vel in 

 stipitem brevem attenuata, lineari-oblanceolata, obtusa, integra, 

 coriacea, pilis sparsis brevibus, cinnamomeis, praecipue ad 

 paginam superitu'em marginenKjue vestita; costa t'onspicua, 

 venis simplieibus inimersis; soris su|K'rfici;ilibus, coshdilms, 

 orbicularilius, magnis, (juam media hiiiiina latioribus, igitur 

 in seriem unam sinuosani instructis, ad fi-ondeni imam (juani- 

 que ca. 6. 



i'aragua Is!., on stones by a bidok (Mi:iji>im. no. 754). 



