GENEEA OF PEBNB : 



directed simple or divaricately-forked veinlets. Tlie veins of the 

 fertile fronds, when contracted, less developed. 



Fronds simple or lobed, rigid coriaceous opaque, clothed 

 especially beneath with stellate hair-scales, or sometimes even 

 lanate; the fertile often contracted, sometimes also more elongated, 

 occasionally fertile at the apex only, and then there contracted, 

 clothed especially beneath with dense stellate pubescence. Sori 

 uni- or multi-serial, often crowded and confluent. Ehizome 

 creeping, often elongated ; or sometimes short, decumbent. The 

 species of Nipkobolus may be known by their having polypodioid 

 sori buried amongst stellate hairs. It is somewhat remarkable 

 that slight as are these peculiarities for purposes of generic dis- 

 tinction, they have sufficed to procure for this genus almost uni- 

 versal acceptance, even by those who reject, as worthless distinc- 

 tions, the most marked and obvious differences of vascular struc- 

 ture. According to this latter view, Niphobolus, bereft of its hair- 

 scales, would simply be a net-veined Polypody. Even taking into 

 account the peculiarities of the venation, the distinctive charac- 

 ters of the genus are not so broad as might be desired, there 

 being, in some cases, a great resemblance to Campyloneurum. 



Polycampium. Sori multiserial ; veins pinnate. 

 Ex. : N. Lingua, Spreng. I N. penangianus, Hook. 



N. venosus, JBlume. N. Gardneri, Kze. Mb. 



N. hastatus, Kze. \ N. splendens, J. Sm. 



Cyclophorus. Sori pauci- or multi- serial ; veins uniform. 



Ex. : N. nummularifolius, J. Sm. 

 N. obovatus, Kze. 

 N. carnosus, Bl. 

 N. rupestris, Spreng. 

 Jf. bicolor, Klf. 

 N. pertusus, Spreng. 



N. porosus, Pretl. 



N. albicans, SI. 



N. puberulus, SI. 



N. Smithianus (N. acrostichoides, J. 



N. africanus, Kze. [_SmJ 



N. samarensis, Fee. 



Niphopsis. Sori uniserial ; veins uniform. 

 Ex.: N. angustatus Spreng. (N. sphserocephalus, Hk. and Or .) 



108. PLEOPELTIS, Svmloldt and Bonpland, Willd. Sp. 

 PL v. 211, (extens.) 



ATACTOSIA, Slume ; ANAPBLTIS, J. Smith ; CHBTSOPTEKIS, Link in part ; 

 31 1 1 KI K ; it \.M M A, Presl ; MiCROSOBTOM, Link ; ANAXETUM, Schott ; PLBU- 

 BIDITIH, Presl; PHTMATODBS, Prel; LBPISORFS, J. Smith; PHTLLITI- 

 DIS, J. Smith.; STMPLECIUM, Eunze; MICKOTERUS, Presl-; DRTOMENIS, 

 J. Smith; CoLTSiDis sp., Presl; MECOSORI sp.,motzsch; POLYPODII sp., 

 Auct,; TKCiAEia sp., Cavanillet; DBYNABLE sp.,Awt.; CEASPEDAKI^ 



