\>.\\ .\i.i.ii:.i: — i»A\ Ai.i.iA. 



53 



Mount AjM). MiiidaniKi, Cni„l,i,i<l Iniiti, on tn-i- Iniuk-, in iIm- iriossy 

 forest, ;it an altituilc i>f l.S(((l m. 



(2) D. contigua Swait/,. Fronds tnltc.l. sc.H.silu or iirarly so, :!il to 

 4') cm. lonj,', al)oul •'! cm. l)ro!ul, liiicar-lanccolatc, cut iluwn nearly or 

 (|uilc to tlic raclii> into nunu'rous liiicar-acuniiiiali- or hlunti-^li, sli;,'litly- 

 tootlu'd IoIhs; texture ooriaoeous; .sori 1 to 8 to a lohc, plact'd in the 

 teetli on tlifir upjier |iait. 



I-u/.on, Cumiuij Jli'.; r.eni_'uet. I'.biirr (i27">: Davao. Coinliiml Ull:?, DcVore 

 and Hoover 3'S't. 



Coylon to PoIyniMJa. 



(3) D. alata I'.l. i />. Kmcrswii Ilk. and fir.) Rootstalk erect, short, 

 scalv: Irnnds tutted. ses>ile, 20 to .'?() oni. liij,'li, :? cm. wide at the \vi(h'st 

 part, lincarlanceohite, out more than half way down to the rachis into 

 niuiicious linear-ohlon<j. or at tlu' lower part t rian;,nilar. loijes; texture 

 eoriaceous. minor vcin> invisihle; s(H i I to S, ]i!aceil round the edge of 

 tlie h)hes. 



Mount .Mariveles, Topping. 

 luilia to I'orneo. 



(4) D. epiphylla HI. IJhizonie tliick. fihrillose: stipe 10 to 50 cm. 

 long, erect, tirm; frond variable in size, deltoid-lanceolate, tri-quincjue- 

 pinnatilid; main rachis hardly at all winged; pinnules of the lowest 

 pinna^ lanceolate, segments narrow, niucronate, sharply toothed; texture 

 coriaceous; veins not immersed, one or two carried into each tooth; sori 

 small, suhmarginal, lialf-cupshaped, with the sharp mucro of the tooth 

 extending beyond them. 



Davao, Waihiiru 141.S8, Copchnid. 



Java and Malay Peninsula. 



Not sulliciently distinct from />. rlcf/tnts. 



(5) D. elegans Swartz. Rhizome stout, creeping, densely clothed with 

 wooly tibrous scales; stipe stout. 10 to 50 cm. high, brown; froiul 30 to 

 no cm. high, two-thirds as wide, deltoid tri- to quinquepinnatitid; main 

 rachis slightly winged toward the apex; ultimate segments oblong-deltoid 

 or narrower, themselves usually toothed, inaequilateral ; texture coriaceous; 

 venation prominent, irregular, with false veins free at both ends between 

 the true ones; sori several to a segment, marginal but exceeded by the 

 teeth; indusivim half-c\ipshaped. 



I.u/oii, Cuiniiiii 77: Benguet, Klnirr 0385; Gimogon River, Negros, 

 Cojichind ti!); Capiz, I'anay, Copchnid. 



Madagascar across Polynesia. 



Very variable in size and the degree of di.ssection of the frond. Epiphytic 

 and terrestrial. 



It. rifita Sw. is a larger ami h-s coriaceous form of this species, with 

 finer divisions. 



(6) D. solida Swartz. Rhizome stout, densely clothed with adpressed 

 scales or fibers; stipe 10 to 15 cm. high, strong, erect; frond 30 to tJO 

 cm. long, deltoid, tripinnatifid ; apex with a moderately broad undivided 

 center; segments ovato-rhond»oiilal. deeply toothed, narrower and sharper 



