i't)iAi'()i>ii:.K — i'()i.vi'(»i>irM. r21> 



Davao, Warburg 141G2, Copeland 1063; difrerent from typical plants in 

 that tliP sori arc not entirely inuncrsed. 

 Java. 



(54) P. trifidum Dnn. Kliizunie stout, creeping, elotlied witli large, 

 lanceolate, squnrrose, ferruginous scales; stipe 8 to 20 cm. liigli, erect, 

 firm, polislied; frond 10 to 15 cm. higli. most frcijiiently trifid. the segments 

 10 to 15 cm. long, one-tentli as hroad, or tlic sterih- rather broader, 

 acumiiiatf. intirc or repand, coriaceous, glabrous, green nn lM)tli sides; 

 main veins conspicuous to the Jiiargin, veinlets obscure: sori in single 

 series, rather nearer the niidril) tliaii the margin, one between each two 

 main veins. 



Benguet, Loher, Elmer 5S15; Arayat, Merrill .3812; Mount Mariveles, 

 Loher, Vopcland 210, Whilford 142. 

 Ceylon to Japan. 

 This is very probably only an undeveloped state of /'. /xtlmatum. 



(55) P. glaucum Kunze. Rhizome creeping, stout, clothed with acic- 

 ular, stitl', ])urplish brown palese 1 cm. or more long; stipe 15 to 20 

 cm. high, erect, firm, polislied; frond 20 to 30 cm. high, 15 to 20 cm. 

 broad, pinnatifid to witliin 5 mm. of the rachis into erecto-patent, acute, 

 entire segments 10 cm. long and 7 mm. broad, or the sterile rather broader, 

 coriaceous, glabrous, the imd^r side with a blue bloom; no main veins, 

 veinlets visible from the upper l)ut not from the lower side; sori superficial, 

 round, in single rows near the midribs. 



Luzon, Cuming; Mount Mariveles, Whitford 147, Copeland 1392; epi- 

 phytic on hii.'h ridges. 



(56) P. affine Blume. Rhizome woody, scaleless; stipe 30 to 45 cm. 

 high, linn, glossy; frond CO to 120 cm. long, 30 cm. or more broad, cut 

 down nearly to the racliis below, within 1 cm. of it above, into erecto- 

 patent, slightly repand, very acuminate lobes, 15 to 25 cm. long, about 

 25 mm. broad, papyraceous, glabrous; no main veins, areolce large; sori 

 superficial, in 2 to 3 irregular rows. 



Luzon. Cuming 07; Sorsogon and Albay, Baranda. 

 Malaya. 



(57) P. Phymatodes L. Rhizome wide-creeping, stout, bearing sparse 

 deciduous fibrillose scales, becoming glabrous except for very few appressed 

 ovate black palea?; stipes 10 to 20 cm. high, erect, firm, polished, brown; 

 frond e.xceedingly various, sometimes simple, lanceolate or oblong, acute 

 or obtuse, entire or nearly so, 10 to 20 cm. long; usually |iiniiatiti(l into 

 segments similar to the simple form, the sinuses reaching to about 1 cm. 

 from the rachis, usually rounded, coriaceous, glabrous; main veins none 

 or very fine and not nearing the margin; sori large, roimd, inuncrsed, in 

 single or double rows or scattered; epiphytic. 



Luzon. Cuming 27, 201; >LTriveles and Manila, Loher; Tayabas, Merrill 

 3353; .Mindoro, Merrill 1780; (Jimogon River, Negros, Copeland 77; 

 Davao, Warburg 14113, Copeland 310, 057. 



Africa across Polynesia. 



24036 9 



