496 
FILICES. 
[Nephrodium. 
glabrous. N. tetragonum, Bcjer, Sort. Maur. 393. Aspidium masca- 
raueuse, Bojer. Sort. Maur. 390, in part. A. heteropteron, Mett. ; 
Kuhn , Fil. Afr. 134. 
Mauritius, in woods. Also Bourbon, Madagascar, and Tropical Asia, not African. 
4. IV. tomentosum, Besv. ; Sook. and Baker, Syn. Ml. 269. 
Rootstock erect ; scales lanceolate, dull brown. Stipes short, tufted, 
pilose, scaleiess. Prond oblong-lanceolate, bipinnatifid, 1-2 feet long 
8-10 in. broad, moderately firm in texture, densely finely pilose ; rachis 
pilose, scaleless. Pinnae lanceolate, sessile, f in. broad, cut down to a 
narrow wing into ligulate entire segments | in. broad, the lower pinnae 
much dwarfed. Veins pinnate in the secondary segments, with 8-12 
pairs of simple distinct veinlets. Sori small, medial. Involucre mi- 
nute, membranous, fugacious. Polypodium tomentosum and nervosum, 
Bojer , Sort. Maur. 419. Aspidium riparium, Bory ; Kuhn , Fil. Afr. 
140. A. strigosum, Willd. 
Mauritius and Seychelles, in rocky woods. Also Bourbon and Tristan d’ Acunba, 
and probably a variety of tbe American N. conterminum. 
5. N. Filix -mas, Rich. ; var. N. elongatum, Soolc. and Grev. ; 
Sook and Baker , Syn. Fil. 280. Rootstock erect ; scales lanceolate, 
reddish-brown. Stipes tufted, straw-coloured, a foot long, with a few 
scales above the base. Prond deltoid, glabrous, moderately firm in 
texture, tripinnatifid, 1-2 feet long; rachis straw-coloured, naked. 
Pinnje oblong-lanceolate ; pinnules lanceolate ; tertiary segments 
oblong, toothed, £ in. broad. Veins pinnate in the tertiary segments, 
with erecto-patent forked veinlets. Sori medial. Involucre firm, 
glabrous, persistent. N. Bojeri, Sook. and Baker , Syn. Fil. 280. 
Aspidium Boryanum, Bojer, Sort. Maur. 391, not Willd. 
Mauritius, in woods of the Pouce, Black River, and Quartier Militaire. The 
variety spread through the tropics of the Old World ; the type cosmopolitan. 
6. N. spar sum, Bon; Sook. and Baker , Syn. Fil. 276. Rootstock 
erect ; scales brown, lanceolate. Stipes tufted, y-1 foot long, naked in 
the upper part, straw-coloured. Prond deltoid, moderately firm in tex- 
ture, 1-1J foot long, tripinnatifid, glabrous. Pinnae cuneate on the 
lower side at the base, the lower ones deltoid, stalked, the upper ones 
sessile, lanceolate ; tertiary segments oblong, obtuse, toothed, T ^— £in. 
broad. Veins pinnate in the tertiary segments, with erecto-patent 
forked veinlets. Sori medial. Involucre firm, glabrous, persistent. 
Mauritius ; two sheets in the Kew herbarium without special station. There 
may be some mistake, as otherwise the species is not known beyond Tropical Asia. 
7. N. Wardii, Baker ; Sook. and Baker, Syn. Fil. edit. ii. 500. Root- 
stock and scales not seen. Stipes glossy, naked, straw-coloured. Prond 
deltoid, membranous, fragile, glabrous, 4-pinnatifid, 1 J-2 feet long ; 
rachis straw-coloured, naked. Pinnae stalked, oblong-lanceolate ; 
