ASPLENIUM, § EUASPLENIUM. 143 



the more equilateral form of the latter. All seem to indicate a species different 

 from A. monanlhemum, with which Moore unites it, and with which, according 

 to a reference of Mettenius, Kunze seems to have confounded it. 



102. A. (Euasplenium) sulmvenium, Hook. ; frond (a por- 

 tion only) a span long lanceolate curiaceo-chartaceous very 

 opaque pinnated, pinnic J of an inch long numerous ap- 

 proximate horizontal sessile oblong obtuse upper half ob- 

 scurely serrated cuneate at the base, superior base truncated 

 subauriculate, inferior margin cut off as it were by a 

 straight line, terminal pinna elongated pinnatifid below, 

 costa and veins sunk obsolete, sori 2-6 oblong oblique occu- 

 pying the disc of the frond between the middle and the 

 apex, involucre firm-membranaceous, rachis ebony-black 

 terete rigid sparsely setose. (Tab. CLXXXI. B.) 



Ilab. Trunks of trees, Madagascar, Bojer, in Herb. Nostr. — I possess but a 

 solitary and imperfect specimen of this species, which, however, seems too well 

 marked to allow of my leaving it unnoticed or undcscrihed. The rachis is ebony- 

 black and slender. The pinnai are peculiarly rigid and opaque, the veins nearly 

 obsolete, the colour (in the dry state) dirty-brown; the ultimate pinna; become 

 confluent, and the apex is acuminated. I place it with little liesitation in the 

 7V2cAo?wa«e*-group of Euasplenium. 



103. A, (Euasplenium) formosmn, Willd. ; caudex short 

 stout densely radiculose, stipites very numerous ca3spitose 

 scarcely an inch long and as well as the rachis ebeneous with 

 a narrow wing on each side, fronds a span and more long 

 elongato-lanceolate acuminate rigid subcoriaceo-membrana- 

 ceous blackish-green pinnated, pinnae an inch long nume- 

 rous approximate horizontal semiovate subsessile rather 

 obtuse, superior base dilated truncate and parallel with the 

 rachis scarcely auricled, inferior base cut off horizontally, the 

 rest of the margin deeply and pinnatifidly incised, lobes 

 oblong obtuse those nearest the base bifid, inferior pinna; 

 distant smaller subtriangular, veins simple or forked, sori 

 broad oblique close to the costa, those on the lower side of 

 the costa parallel with the margin. — Willd. Sp. PI. v. ]). 329. 

 Schlecht. in Linneea, v. p. 612. Hook. Fil. Exot. t. 16, 

 Metten. Asplen. p. 134. Moore, Ind. Fil. p. 132. Aspl. 

 subalatum. Hook, et Am. Bot. Beech. Voy. p. 312. /, 71- Aspl. 

 odontophyllum, Wall. Cat. n. 2216. 



Ilab. Apparently common throughout tropical America, from Mexico and Guate- 

 mala to Brazil and Peru. Numerous special localities are recorded in our ' Filices 

 Exotica:' and in Moore's ' Index Filicum,' chiefly from our own herbarium. Chatham 

 Island, Galapagos, Captain Wood, Cuming, n. 108. Tropical Africa; Congo, R. 

 Brown, Herb. (Moore). East Indies; Ceylon, on mountains, clev. 3000 feet, 

 Thwaites, n. 3487. Madras Peninsula, Wight, n. 100, Beddome. Nilghiri, 



