174 CHRIST. 



0.7 mm. lato. Textura tenuiter papyraeea, eolore opaco obscure viridi 

 subglauco, 



MiNDANAO, District of Davao (700 Copeland) March, 1904. LuzoN, Province 

 of Bengiiet, Sablau (61G0 Elmer) April, 1904: Province of Rizal, Montalban 

 (Loher) 1896; Province of Bataan, Lamao River (3122 Merrill) October, 1903. 



Tlie sanie species is found in China, Swatow, leg. Henry. 



VITTARIA Sm. 



68. Vittaria Merrliiii n. sp. 



Rhizomate pennae corvinae crassitie, horizontaliter et longe repente 

 vix ranioso non caespitoso, setis tenuissimis 0.6 cm. longis erectis 

 atrofuscus tecto, stipitibus remotis basi articulatis et setulosis, tenuibus, 

 1 mm. diametro pendentibus, fiexuosis, 20 cm. longis, et tandem in 

 laminam deeuxrentem sensim transeuntibus, fuscostramineis, lamina 

 60 cm. et ultra longa, 1 cm. usque ad 1.8 cm. lata lineari, acuminata 

 sed saepe dilatata et irregulariter bi- ad quadrifida, lobis falcatis acutis 

 1.5 cm. longis, costa tenui saepe inconspicua, nervis valde elongato- 

 obliquis tenuibus, seriebus 4 ad 5 utrinque, soro angustissimo, stricte 

 marginali, indusio 0.7 mm. lato pallido tecto. Textura flaccida, colore 

 dilute virente, opaco. 



MiNDANAO, District of Davao, Monnt Apo (151G, 1192 Copchind) October, 

 April, 1904, 1,200 to 1,5,50 m. alt. ; Lake Lanao, Camp Keithley (104 Mrs. 

 Clemens) January, 1906, alt. 6G0 m. Mindoro, Baco River (4044 Merrill) 

 March, 1905, near sea level. 



A species related to Vittaria eJongota Sw., but with very slender and elongated 

 stipes, the fronds very broad with a tendency to bccome enhirged and cleft at 

 the apex, the rhizome elongated and running like tliat of Polypodium. The 

 forking of tlie fronds reminds one of Hecistopteris, and of its affinity witli 

 Vittaria whicli (Joehel, based on anatomical characters, has asserted. 



69. Vittaria pachystemma n. sp. 



Rhizomate repente more Polypodii, pennae anserinae crassitie, setulis 

 crispatis raris nigris coronato, aliter nudo, stipitibus non fasciculatis 

 sed approximatis basi articulatis cum costa rufostramineis, 6 cm. longis, 

 8 mm. et ultra latis, sensim in laminam transeuntibus, lamina 25 ad 30 

 cm. longa falcata lineari-lanceolata acuta nec longe acuminata 12 mm. 

 lata, costa plana sed manifesta 1 mm. hita rufostraminea, soris angus- 

 tissimis a basi laminae ad apicem continuis, submarginalibus, indusio 

 vix 0,5 mm, lato pallido. Textura succulenta sicce coriacea, opaca, colore 

 lurido-glaucina, planta nuda. 



Mindanao, Province of Zamboanga, San Ramon (1589 Copeland) Janviary, 

 1905, alt. 500 m. 



A species with succulent coriaceous opaque pointed falciform leaves and thick 

 stipes. 



70. Vittaria Philippinensis Christ in Bull. Herb. Boiss. II. 6 (1906) 1007. 



I have a specimen, quite identical with tliis species, from tlie Liu Kiu Islands, 

 Okinawa, Matsumura 213. 



