— 103 — 
libus supremis aequales; costulae 1½ 2“ distantes, sub angulo 
65° decurrentes, leviter divaricatae, maculae utrinque ad costam 
3—4 serialae, radium liberum excipientes, internae rectangulae, 
externae subquadratae; sori ulrinque ad costam 1—3 seriati, 
superficiales s. vix impressi; paraphyses sporangiis intermixtae 
apice dilatato sublobatae s. torulosae. Sumatra. 
P. regulare Mett. Rhizoma repens, elongatum; paleis 
1!/2^^ longis: membranaceis subferrugineis ovato-lanceolatis acu- 
minalis integerrimis squamosum mox denudatum ; folia tenuiter 
chartacea subnitida glaberrima; sterilium petiolus 1— 6^ longus, 
e medio alatus, lamina ad 1¼“ longa, 2½“ lata, elongato-ob- 
longa utrinque sensim attenuata acuminata integerrima ; costulae 
2—3““ distantes prominulae sub angulo 70° decurrentes rectae 
s. subdivaricalae, maculae utrinque ad costam 6 — 8 seriatae 
manifestissime exsculplae, subquadratae , marginales minores, 
pleraeque rcgulariter in maculas binas secundarias appendiculatas 
divisae; foliorum fertilium petiolus? lamina 8“ longa, 2^ lata, 
elongato-oblonga, utrinque breviter altenuata; seri medii inter 
costulas iisque paralleli, e basi rami antici ad marginem extensi, 
continui s. interrupt. Borneo. 
P. spurium Mett. Rhizoma repens elongatum paleis 
1^ longis membranaceis fuscis ovatis acuminatis integris squa- 
mosum, mox denudalum ; folia membranacea glabra, supra 
opaco-viridia; petiolus ad 9^ longus, livido-rufescens, basi sub- 
teres, caeterum marginatus s. anguste versus apicem manifestius 
alatus ; lamina 1“ longa, 3^ lata, ovato-oblonga, basi late cuneata 
et in petiolum decurrens apice brevius attenuato obtusiuscula; 
margine leviter sinuata; costulae 3—4'/^ distantes, sub angulo 
60? decurrentes prominulae rectae; maculae translucentes, pri- 
mariae irregulares et irregulariter in maculas secundarias 2—3 
varie appendiculatas tertiariasve minores divisae; sori medii 
inter costulas , uniseriati, oblongi s. varie confluentes. =- 
Celebes. icr 
P. violascens Mett. Rhizoma repens, paleis rufoferru- 
gineis subnitidis lanceolatis acuminatis vix ciliatis dense squa- 
mosum; folia coriacea infra violascenti - pallida , petiolus. 3“ 
longus; lamina 6^ longa, oblonga, pinnatisecta; segmenta 
approximata, 6 juga, patentia, lanceolata acuta, margine callose 
remote serrata, infima subsoluta, basi utraque attenuata adnata, 
superiora adnata s. decurrentia; costulae prominulae, maculae 
immersae, sori utrinque ad costam laciniarum superiorum uni- 
seriati, saeculo in dorso laminae protuberante brevi -cyliüdrico 
immersi. Java. it 98619 
P. linguaeforme Mett. Rhizoma repens. crassitiem 
pennae anserinae adaequans, durum , paleis. membranaceis, 
fuscis ovato-lanceolatis sqamosum ; folia chartacea glaberrima 
