PIIILIPl'INE SPECIES OF DUYOPTERIS. 201 
piiinis infimis basl attenuatis et defiexis, baud abbreviatis, pinnis obovatis 
sive rhombeo-clongatis 4.5 cm. longis, 3 cm. latis versus apicem latissimis 
ad mediam laminam sive ultra incisis lobis ovatis rotundato-obtusis 3 
cm. latis ca. 8 titrinque, versus apicem pinnae repente elongatis, fronde 
fertile confonni^ nervis ca. 8 utrinquc aream unam costalem formantilms, 
soris magnis-brunneis rotundis ultra 1 mm. latis, in lobis submarginalibus 
(lamina media soris destituta) brimneis exindusiatis. Faciebus tenuis- 
i sime puberulis, textura herbaeea, colore obscure viridi. 
Luzon, Province of Laguna, Mount Maquiling (Lohcr) April, 1906: Province 
of Rizal, Ampalit (Loher) April, 1900. 
No. 51 Cuming "Polypodiuin adfine Rcinw." in Herb. Bureau of Science, 
approaches Lohcr's specimens cited ul>ovo, except that tlie sori are not confined 
entirely to llie lobes and are less nuirginal. 
In many respects similar to D. oanescens var. lohatum, but the accrescence of 
the pinnse toward the apex and the increasing length of the "lobes toward the 
tips of the pinnse is more accentuated. Tlie sori are large, marginal, bordering 
the lobes in a single series and the plant has not the harshness and grayish color 
tliat distinguishes D. cimescens, so that the present forin can hardly be referred 
to the preceding as a subspecies. 
21. Dryopteris xiphioides n. sp. 
Rhizomatc obliquo repente, stipitibus debilibus valde approximatis 
numerosis aeqiiilongis 30 cm, longis rufostramineis, fronde pinnata 20 
cm. longa 11 cm. lata, late ovato-elongata, ad basin vix attenuatii, pinna 
terminali 10 cm. longa basi aut libera aut pimiis lateralibus valde 
abbreviatis vicina sive connata, 13 mm. lata acuminata lancoolata crenata, 
pinnis lateralibus 4 aut 5 similibus sed hand ultra 7 cm. longis, ncrvis 3, 
rarius 4 omnibus Junctis, soris paucis minutis exindusiatis, tota planta 
parce griseo pubcscente, textura herbacea, colore griseo-virldi. 
Mi-NUANAO, Province of Zamboanga, San Ramon {Copeland, s. n.) April, 1905. 
alt. 800 m. 
A species of the D. cancscens group, remarkable by its very elongated falcate 
pinmc which are not reduced toward the base of the frond and but slightly lobed. 
22. Dryopteris Merrillii n. sp, 
Rhizomate erecto radicoso crasso, foliis fasciculatis numerosis, stipite 
rufostramineo flexuosa vix pennae corvinae crassitie basi squamulis mini- 
mis ruguloso aliter nudo (rachi faciequc frondis parce puberulis) 18 ad 
20 cm. longo, fronde ovato-oblonga acuminata, 20 ad 29 cm. longa, 12 
cm. lata, apice elongate lobato, pinnata, pinnis confertis patentibus 
infimis interdiim reductis et deilexis, cgregie petiolulatis, falcato-lancoo- 
latis, acutis, 6 cm. longis, 12 mm. latis, basi verticaliter truncata egregie 
hastata, antice plus minus aucta, pinnis dentato-serratis dentibus dccum- 
bentibus, nervis gonioptcridis, pinnatis inter costam marginemque areas 
4 ad 5 formantibus quaque area nervulum liberum porrectum'includonte. 
Fronde fertili longius stipitata, pinnis angustioribus magi& remotis. 
Adsunt pinnae fertiles G mm. 5 mm. et 2 mm. latae! Soris confertis 
54744 4 
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