Polypodiaceas.} SANDWICH ISLANDS. 107 



This plant is a foot and a half long. Frond linear-oblong, with patent short primary pinna? of a delicate 

 membranaceous texture. Sori one or two on each lobe. 



8. Asplenium diplazioides ; glabrum, fronde bipinnata, pinnulis subremotis patentibus 

 lanceolato-acuminatis pinnatifidis, lobis ovali-oblongis obtusis crenato-lobatis, soris numero- 

 sissimis obliquis ssepe geminatis. 



Neither among' the many Asplenia that have been published, nor among the Diplazia, do we find any 

 species that accords with this, which, indeed, partakes as much in the character of the one genus as of the 

 other. The fronds (and we have no perfect stipites) are broadly, almost deltoidly ovate; the divisions 

 rather remote ; the primary ones broadly lanceolate, 4-6-8 inches long ; the secondary ones or pinnules 2-3 

 inches long, and half an inch in breadth. Fructifications very copious, at length almost confluent. 



9. Asplenium ambiguum? Sw. — Schkuhr, Fil. t. 75. a. b. 



Without the lower part of the frond, which is wanting in our specimen, it is difficult to say if this be 

 decidedly the A. ambiguum of Swartz. 



10. Asplenium Poiretianum ; frondibus fasciculatis decompositis utrinque glabris (2-3 

 pedalibus), foliolis pinnatis, pinnis ovato-lanceolatis acutis pinnatis basi superiore auriculi- 

 formibus, pinnulis lineari-lanceolatis subcoadunatis acutis serrato-pinnatifidis raclii ramu- 

 lisque submarginatis margine laciniato-squamuliformibus, soris subreniformibus minutis 

 costae mediae approximatis, caule subarboreo prostrate Gaud, in Freyc. Voy. p. 321. t. 13. 



1. Darea flaccida. Willd. Sp. PL p. 295. /3. pinnis subbipinnatifidis. 



This may perhaps prove to be a species distinct from D. flaccida. It is often two feet or more in height 

 The fronds are very flaccid ; the pinna; have the segments (which are linear and bearing one sorus in D. flac- 

 cida) again pinnatifid with two or three segments, and bearing two sori. 



1. Sadleria cyatheoides ; pinnulis remotiusculis enerviis, radii nudo glaberrima. — Kaidf. 

 Enum. Fil. p. 162. 



2. Sadleria pallida ; pinnulis approximatis nervosis, rachi paleacea. Hook, et Am. p. 75, 

 kujusce operis. 



See page 75 of the present volume, for some remarks on this plant. 



1. Pteris pedata. Willd. Sp. PI. p. 358. Langsd. et Fisch. Ic. Fil. p. 17. t. 20. 



This is indeed a very variable plant, yet easily recognised in its different states by the peculiar ramifica- 

 tion of the frond. The P. geraniifolia of Raddi, Fil. Bras. t. 67, tolerably correctly represents the state of 

 the single specimen of this plant in the Collection. 



2. Pteris alata; frondibus (3-4 pedal.) tripinnatifidis tetrapinnatifidisve, pinnis oppo- 

 sitis, pinnulis lineari-lanceolatis irregulariter lobato-pinnatifidis acuminati.s, laciniis oblongo- 

 lanceolatis subobtusis integris plerumque abortivis, inferioribus dcntuto-subcrenulati.s, radii 

 late alata, stipite triangulari atro-rubro basi paleaceo. Gaud, in Freyc. Voy. p. 391. /. li), 

 (excellent.) — P. irregularis. Kaulf. Enum. Fil. p. 189. 



1. Doodia Kunthiana; frondibus fasciculatis lanceolatis subacutis serrulatis superioribui 

 adnatis inferioribus petiolatis basi cordatis infimis subauriculatis, stipite elongato rugoso 

 basi squamoso. Gaud, in Freyc. Voy. p. 401. t. 14. 



1. Vittaria elongata. Sw. 



O 2 



