-i 



OF PEE^fS FROM MADAGASCAR, 203 



I line broad. Veina 10-12-jugate, simple, erecto-patent, distinct. 

 Sort minute, median. Involucre minute, glabrous, persiateut, 

 . Avery distinct plant, nea^rest J^. prolix um^ Baker, well marked 

 by its long very narrow cuspidate pinnae, very narrow segments, 

 and copious minute sori, 



N'BPHEODiuii (Lasteea) BucHANAifi, Baker. 

 N. (Ectxephrodium) pexxigerum, Kook. 



183*. N. (Ec-NEPHRoniuAf) costulare, Saker, n. sp. Stipe 

 (incomplete) green, naked, like the rachis. Frond oblong-deltoid, 

 bipinnatifid, 2 feet or more long, a foot broad, membranous, 

 bright green, entirely glabrous, or obscurely pilose on the midrib 

 of the pinnae beneath, not reduced at the base. Pinnae all sessile, 

 lanceolate, the lower ones 5-6 in. long, an inch broad, cut about 

 ^ of the way down to the midrib into close oblong entire lobes 

 ^"l in. broad. Veins 8^9-jugate, fine, erecto-patent, distinct, 

 about three joining those of the next group by their tips. Sori 

 small, costular. Involucre minute, fugacious. 



This is the plant mentioned in the account of Mr, Pool's collec- 

 tion as a new species nearest N. pennifferum. Miss Gilpin's spe- 

 cimens are complete enough to enable me to characterize it.- 



N. (EuKEPHEOmUM) TBUKCATUK, Pvesh 



25*. PoLTPODiUM (Phegoptebis) fragile, Baker, n. sp. 

 Stipe (incomplete) slender, pale green, faintly pubescent. Frond 

 oblong-deltoid, tripinnatifid, 6-9 in. long, 4-5 in. broad, bright 

 green, membranous, with the veins on both sides densely ciliated. 



Pinnae sessile, lanceolate, the lower ones 2-2| in. long, |— ^ in. 



broad, cut down to a narrow wing into oblong-oblanceolate pin- 

 nules, which are obtusely lobed ^-^ way down to the rachis; 

 lowest pinnae not reduced. Veins erecto-patent, forked or sub- 

 pinnate in the lower tertiary lobes. Sori small, round, one to 

 each tertiary lobe, placed near the tip of the anterior fork of the 

 vein close to the bottom of the ultimate sinuses. 



Eesembling NeopTirodiumJlaccidum in texture and cutting. 



srN 



Ehizome 



thread-like, wide-creeping. Stipes |-| in. long, clothed with fine 

 brown spreading hairs. Frond simple, coriaceous, ligulate, ob- 

 tuse, cuneate at the base, 1-li in. long, 2-2^ lines broad, glabrous. 

 Veins simple, erecto-patent, hidden. Sori round, superficial, 



