SPICILIGIIM FILICUM PHILIPPINENSIUM. 169 



(Copeland) pinnis petiolatis, 90 cni. longis, 30 cni. latis oblongis acumi- 

 natis l)asi haiul attenuatis. Pinnulis ca. 35 utrincpie, iniimis remotis, 

 reliquis approxinuitis, petiolulatis, infimis IG cni. longis, basi 6 cm. 

 latis, acuminatis, oblongis, antice basi valde auctis, i. e., pinnula"! 5 

 cm. longa lanceolata, rhachi adpressa et pinnuhirum'^ proximani at- 

 tingente et superante, basi pinnuhie" posteriore cuneata, pinnulis^J^ 

 vakle abbreviatis praedita. Pinnulis"! imbricato-confertis ca. 25 utrin^- 

 que, lanceohito-obtusiusculis, basi inaequali antice aucta, bTevissime 

 petiolatis, 2 cm. longis, 0.5 cm. latis, usque ad costulam alatani incisis. 

 segmentis ultimis oblongis obtusis inaequalibus antice crenatis 0.5 cm. 

 longis, 2.5 mm. latis, costis nervisque adpresse rufo-pubescentibus, nervis 

 in segmentis pinnatis furcatis 'uanifestis, soris in sinu dentium positis, 

 uno rarius pluribus pro segmento, marginalibus, 1 mm. diametro, globosus, 

 brunneis, indusio superiore (marginali) manifesto deflexo, inferiore 

 sporangiis conferto. Textura eoriacea rigida, colore griseo-virente, opaco. 



MixDANAO, Piovince of Zamboanga, San Ramon (1(532 Copcland) February, 

 1905: District of Davao, Momit Batangan (14134 Warburg) : Lake Lanao, 

 Camp Keithley (375 Mis. Clemens) Marcli, 1906. LuzoN, Province of Rizal, 

 Mount Batay (Loher) April, 1905; Arambibi River (Loher) March. 



56. Dennstaedtia Hooveri n. sp. 



Amplissima, rhizomate repente, fronde 2 m. alta, subdeltoidea, quad- 

 ripinnatifida, stipite 1.5 ad 2 m. (Copeland) rhachi digiti crassitie, cuni 

 costis costulisque pubescentia brevi strigosa rufa tecta, pinnis CO cm. 

 longis, 18 cm. latis breviter petiolatis basi vix attenuatis, acuminatis, 

 pinnulis alternis approximatis petiolulatis, ca. 35 utrinque, e basi hita 

 et antice aucta oblongis acutis. 9 cm. longis basi 3 cm. latis, costa haud 

 alata, pinnulis^^^ ca. 18 utrinque, fere imbricato-confertis, ovato-obtusis 

 inaequalibus, basi posteriori cuneatis, antice truncatoauctis 1 cm. longis, 

 0.5 cm. latis usque ad rhachin incisis, segmentis^^ 3 aut 4 utrinque, 

 cuneato-oblongis obtusis, 3 mm. longis 2.5 miu. latis crenato-lobatis, iis 

 pinnarum sterilium elongatis dentibus acutiuscuHs, nervis in segmentis 

 pinnatis et furcatis, faciebus utrinque pilosis, pilis albidis tortuosis, 

 soris 1 mm. latis rotundatis, uno rarius phiribus pro segmento, in dente 

 obtuso brevi basihiri posito, indusio tenuissimo mox evanido infero semi- 

 cupuhformi membranaceo-griseo. Textura tenuiter herbacea, colore 

 obscuro-viridi. 



MiXDANAO, District of Davao, Mount Apo (DcVorc cC- Hoover) May, 1903: 

 Province of Zamboanga, 8an Ramon (Copeland) May, 1905, alt. 850 m. 



A species related to D. flnccida (Forst.) Bernh., of Sanioa, cliaracterized by 

 its long and rather frequent villous hairs, the pinnules of tlie third order broad, 

 irregularly parted and serrate-imbricate, and a rather pronounced dimorphism 

 between the fertile and sterile fronds. Texture thin. Rachis and cost« covered 

 with a reddish pubescence. It is distinguished from D. flaccida by its lobes ami 

 pinnules being narrowcr and in its shorter pubescence, otherwise very simihir to 

 tliat species. 



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