FLOUA OF MADAGASCAR. 535 



^ 



very distinct. Sori filling all the segments except the edges and 

 tips, often 8-10 to each- Indusium not more than half the size 

 of the globose sorus, persistent, quite entire and truncate at the 

 throat. — Baron 3845 ! 



CtATHEA LEPTOCnLAMYS, n. sp. 



C. frondibus amplis bipinnatis utrinque viridihus facie glabris dorso parce 

 piloso-paleacels, pinnis oblongo-lanceolatis rhachibus inermibus facie dense 

 pilosis dorso subcalvatis, pinnulis lanceolatis sessilibus sursum crenatis 

 deorsum ad medium pinnatifidis segmentis contiguis oblongis, venis parce 

 ])Innatis, venulis 3-4-jugis ascendentibus siraplicibus, soris ad pinnularum 

 costam utrinque laxe uniseriatis, indusio membranaceo fragili. 



A large tree-fernj allied to C. canaliculata^ "Willd. Fronds 

 moderately firm in texture, green on both surfaces, paleaceo- 

 pilose on the main ribs beneath. Pinnse above a foot long, 2| in. 

 broad. Pinnules very numerous, alternate, sessile, but not adnate, 

 ^ in. broad, the largest cut halfway down to the rhachis into con- 

 tiguous ascending oblong lobes ^ in. broad, Veinlets not more 

 than 3-4 on a side opposite each lobe, distinct, simple, very 

 ascending. Sorus one near the base of each lobe, a short dis- 

 tance from the midrib of the pinnule. Indusium membranous, 



persistent, ^ig- in. in diam., breaking up irregularly; receptacle 

 large, barrel-shaped, glabrous. — Baron 3665 ! 



PoLTPOniuM (§Phegopteris) Baboni, n. sp. 



P. frondibus amplis bipinnatis utrinque viridibus glabris, rhachidibus 

 furfuraceis minute paleaceis, pinnis oblongo-lanceolatis, pinnulis lanceolatis 

 brevissime petiolatis ad costam pinnatis, segmentis tertiariis lineari- 

 oblongis crenulatis adnatis, venis pinnatis venulis 5-6-jugis siraplicibus 

 obscuris, soris submarginalibus demum confluentibus. 



General habit like that of the phegopteroid forms of Nej^Tiro- 



dium viUosum. Ehachides thinly coated with ferruginous tomen- 

 tum and furnished with a few small linear brown paleae. Longest 

 pinnse in the specimen 9-10 inches long. Longest pinnules 2 in. 

 long, |-f in. broad. Lower tertiary segments g in. broad, as- 

 cending, adnate at the base, with a distinct space between each ; 

 veinlets distant and indistinct. Sori placed at the tip of the 

 veins, superficial. — Baron 3920! 



LTCOPOniUM XIPnOPHYLLUM, n. sp. 



L. caulibus siraplicibus erectis angulatis, foliis laxe dispositis lanceolatis 

 firmulis nitide viridibus integris patulis vel subsquarrosis basi decurrentibus, 

 sporangiis ad foliorum ceatralium axillas solitariis sessilibus. 



