riii.vi'((hii:.K— I'di.vi'ohir.M. 125 



frond .'5 to S ciu. liijili, lower liioail |)ait st«Tilc, ii|i|iir |iiirt contracted 

 and soiiftTous ; sori ratlu-r larj,'t', iniincl, in ■^inj.'li' rows, often continent, 

 and covcrin;; tlie apex of tlie frond. 



Luzon, fitcere; Bengnet, Elmer G128; Arnynt, Mmill :JS17; Mount Mari- 

 veles, Lohcr, Mcrrin 322;>, 37:)0, Whitford 314; Mount Apo, nrVore and 

 Ifnorer 325, ('oitrlainl : tlip Mount Apn i)lants are lar;.'er tlian tlioso from 

 Luzon. 



Malaya ainl Tnlynt^sia 



(33) P. hammatisorum !Iarriii;,'ton, .Fourn. Linn. Soc. 16(1S7S):32. 

 Kliizoine lonj; and -.lender, clothed with nicinhranous, lonfi-lanccolate, li<rlit 

 hrown scales; stipes scattered, those of the sterile frond 1 to 4 cm. hi;;h, 

 of the fertile 3 to 7 cm., slender, naked, erect : sterile frond elliptical, 

 1 to 4 cm. Ion;,', r» to 2;") nun. hroad, ohtuse, coarsely and shallowly crenate 

 except at tlie tajx'ring hase; fertile frond linear, .') to 12 cm. Ion;;, 4 mm. 

 broad, with a lobe under each sorus, coriaceous, ^ihihrous ; midrib distinct, 

 veins immersed; sori about 20 in a row on each side of the costa, nearly 

 opposite, lar^re, ;,'ivin;,' the fertile frond a knotted a|ipearaiice. 



.Moinit Majayjay, on fallen timlK'r, Stecrc. 



(34) P. Rudimentum ( n|>rlaii(l. Rhizome wide-creepinp, slender, cloth- 

 ed with linear-subulate scales; stipes 15 to 25 mm. high, filiform, straight 

 and erect, glabrous; frond orbicular-ovate, the fertile rather the narrower, 

 10 to 20 tnm. long, rounded at both ends, entire or with fine incisions 

 marking the jdaci' of teeth, coriaceous, very glal)rous; costa disappearing 

 below the apex, veins hidden, anastomosing irregularly or rarely free but 

 hamate; sori few in a row on each side of the costa, nearer it tlian the 

 margin, round, somewhat immersed. 



Baguio, on wet boulders, Elmer 6022. 



(35) P. stenophyllum Bluine. Rhizome moderately thick, wide-creep- 

 ing, densely cloihcd with linear, pale brown scales; stipes 1 to 2 cm. high, 

 firm, erect ; fronds 10 to 12 cm. high, 1 cm. broad, rounded above, attenuate 

 to the ba.se. entire, coriaceous, glabrous; veins immersed, invisible, with 

 few veinlcts; sori in single rows near the margin, round, deeply immersed, 

 and ])rominent from the upper side. 



Luzon, Cumin fi 122. 



Java to ( 'elebe-i. 



(3t)) P. longifolium Mett. Rhizome short-creeping, woody, its scales 

 liiU'ur. \cry dark: sti|)e about 2 cm. high, not distinct from frond; frond 

 30 to 40 cm. liigli. 10 to 20 intn. l)road, subacute, entire and often revolute, 

 attenuate to the base, coriaceous, glabrous or nearly so; veins invisible, 

 areola; fine, with copious free veinlets; sori oblong, quite immersed, placed 

 in a single row cIo.se and parallel to the margin, separated by more than 

 their own length. 



Mount .\toc. I.."i00 m.. Lolirr : Paragiia. Merrill 752. 



Malaya. 



(37) P. tenuilore Kunze. Rhizome slender, scandent ; frond 20 to 50 

 cm. high, at most 12 mm. broad, acinninate, entire, attenuate to the sessile 

 or sliortsti])itate base, coriaceous, glabrotis; main veins none, areoltr fine. 



