Tdi , ^ r( )i *i i-:.i<: — du yos'i'a c i n r m . 1 ; ;. > 



siiiuatc-lohrd ; aliovc this .")() cin. or more of tlir sti'rilc rt';.'ioii, piiiiialirKi 

 uitliiii 1 ('111. of tlir iiicliis into frt'C'topatt'iit .H('{,'iiH'nt.s jiltout '27y cm. ionj,' 

 and 4 cm. hroad ; tinally llic fertile a|)cx, more than '.W cm. lii^'li. cut 

 to the rachi.s into .sei^ment.s l(( to 20 cm. loiij?, alxmt 1 cm. liroad, .sejiaratetl 

 by twice tlieir own l»rca(ltli; sori occupvinfj tlic entire rlnrsal surface 

 e.\cejit the niidril) and main veins rniiiiiii;: to tlie mar^'in. 



Luzon, Ciniiinii S7 ; Hen;,'uct. 'I'niiiiiiiii -lA't; Davao, Vopcland 1285. 



MaUicea to New (Iiiinea. 



(58) DRYNARIA Hnry. 



Rliizome very stout, scaly, cree|)in^'; fronds of two kinds, («) cup-loaves, 

 hrown. rijrid. like sessile oak leaves, and ( /» ) ordinary leaves, larjje, f;reen, 

 pinnatitid, with se<,Muents deciduous from tlu' raclTis, of pinnate; veins 

 anastomosiuf,' copiously, with free included veinlets in all directions. Larj^e, 

 conspicuous e|)ipliytes. Tiie cup-leaves collect quantities of detritus, form- 

 ing a soil into wliii'h the roots grow. 



(1) D. quercifolia (L.) IJory. Scales of the rhizome about 1 cm. long, 

 brown, narrowly lanceolate, from a coidate base; cup-leaves 20 to .'JO 

 em. long, 1.1 to "io cm. broad, sliallowly lobed below, deeply toward the 

 ajM'X; normal fronds on petioles sometimes ."55 cm. long. winge<l nearly 

 or <iuite to the base; frtmd 00 to 100 cm. long, about .30 cm. broad, 

 pinnatitid as a rub' to about 5 jum. from the rachis, into segments 10 to 

 15 nun. broad; sori in regular rows, one row on each side of each main 

 vein luiming to the margin. 



Luzon, Ciiniinfi 25, 273, 414; Nueva Viscaya, Merrill .311; Benguet, 

 Toppiiuj 174, 344; Mount Mariveles, Whit ford .372; Sorsogon, Catanduanes, 

 Bataan, and Masbate, liurandn ; Culion. Merrill; Capiz, Panay, Copeland 70; 

 fJuimaras, Ritchie, Forestry Bureau, 3(i; Cebu, Barrow 21; Davao, DeVore 

 and floorer 101, Copeland 1321. 



India to Melanesia and Queensland. 



(2) D. Linnaei Hory. Scales of the rhizome broa<]ly ovate with peltate 

 base; cup-leaves bluntly lobcd; normal fronds 00 to 100 cm. long, 15 to 

 30 em. broad, long stalked, cut down nearly to the rachis into entire, 

 erecto-patent lanceolate lobes, rigid, glabrous; sori small and scattered. 



Cagayan, Luzon. Warhurr/ 12200, 12210; Davao, Warburg 14141. 

 Ceylon to Polyne:«ia and (^vu'enslaiul. 



(3) D. rigidula (Sw.) J. Sni. Rhizome creeping, intertwined. <lothed 

 with ferrugineous, black-centred, long-pointed scales; cup-leaves sessile, 

 deeply cordate, oblong, narrowed upward, 15 to 25 cm. long, sinuate near 

 the base, deeply lobed toward the apex; normal leaves pinnate, 50 to 

 100 cm. or lufire long; pinuip 10 to 25 cm. long, broadly linear, acuminate, 

 une(|ual-side(l at base, on short, winged petiolules, very readily cast, serrate, 

 glabrous, hard; fertile pinna- usually narrower than the sterile, with a 

 single row of round, immersed sori along each side of the costa. A tree- 

 top fern, forming large nests. 



Philippines, f'utniiiii 248, 2(i3 ; Mindanao, Copeland HW4. 

 Malacca to Polynesia and Australia. 



