242 38. ASPLENIUM, §§§§§§ ANISOGONIUM. 



Fronds fully trif innate. Sp. 2G0-2G3. 



260. A. (Dipl.) gracilescens, Mett. ; st. straw-coloured, slender, but firm, 

 naked, polished ; fr. 3-4 ft. 1., 2-3 ft. br., tripinnate ; lower pinner 12-18 in. 1., 

 6 in. br. ; lanceolate-acuminate ; pinnl. close, short-stalked, 2-3 in. 1., nearly 

 1 in. br., lanceolate-acuminate, with oblong unequal-sided pinnatifid segm. ; 

 texture herbaceous ; rachis stramineous and both sides naked ; two veinlets in 

 the upper, four in the lower lobes ; sort only one in each, except the lowest, 



1 lin. 1.; mvol. membranous. — Mett. Fil. Nov. Gran. p. 237. Diplazium, 

 3Ioore. 



Hab. Venezuela, Schlim, 69. 



261. A. (Dipl.) sandivichiamim, Mett. ; st. 2 ft. I., firm, dark-brown, tomentose, 

 furnished at the base with ovate-lanceolate scales, dark-brown in the centre, and 

 a broad margin suddenly scariose ; fr. 2-3 ft. 1., 1^-2 ft. br. ; lotver jnnnce 9-15 

 in. 1., 6 in. br., with numerous spreading pinnl. 3 in. 1., 1 in. br., with distinct 

 oblong scgm. ^ in. 1., ^ in. br., the lower ones cut down nearly to the rachis 

 into blunt lobes ; texture herbaceous ; colour dark-green ; rachises hrown and very 

 tomentose, those of the pinnules distinctly winged ; veins distant, pinnate ; sori 

 copious, in regular rows not reaching the edge. — Hk, Sp. 3. p. 225. Athyrium, 

 Presl. A. alienum, Mett. p. 169. A. fuscopubescens, Hk. Sp. 3.p. 264. 



Hab. Sandwich Islands ; Peru, Lechler, Sjoruce, 4759, 5416a. — Spruce's specimens quite 

 agree with those from Mr. Lambert, mentioned in " Species Filicum." 



262. A. (Dipl.) JVilsoni, Baker ; st. slender, brownish, naked ; fr. 3-4 ft. 1., 



2 ft. br. ; lower pinnce 10-12 in. I., 2-2| in. br., with numerous imbricated pinnl. 

 l-f-l^ in. 1., f in. br., the point blunt, cut down to the rachis, except at the apex, 

 into oblong-rhomboidal lobes, the lower ones \ in. 1., ] ^-2 lin. br., broadly but not 

 deeply lobed ; texture herbaceous ; both surfaces and rachis quite naked ; colour 

 deep-green ; veins four on a side in the lower lobes, the lower ones forked ; sori 

 linear, 1 lin. 1., rarely diplazioid ; itivol. tumid. 



Hab. Jamaica, Wilson, 929 ; March, 206, 377. — In habit and cutting this resembles 

 the preceding closely. 



263. A. (Dipl.) divisissimum, Baker; st. 1-2 ft. I., firm, angular, polished, 

 reddish-brown, shaggy below, with nearly black dense fibrillse ; jFr. 3-4 ft. 1., 2 ft. 

 br., with numerous j9W?;fe on each side, the lower ones 3-4 in. apart, 1 ft. 1., 6 in. 

 br., with very numerous close-placed lanceolate jom??^. 3 in. 1., | in. br., cut down 

 into very numerous oblong segm. § in. 1., 2 lin. br., which are again cut down to 

 the rachis into obovate ult. divisions 1 lin. br. ; texture herbaceous ; rachis 

 dark-coloured, naked ; colour dark-green ; two veinlets on each side in the lower 

 ult. divisions; sori linear, sometimes 1 lin. 1., only the lowest occasionally 

 diplazioid. 



Hab. Foot of M. Chimborazo, Spruce, 5695. — This comes nearest to the two preceding, 

 but is much more compound. We have an incomplete specimen of a very similar plant 

 from Celebea. 



§§§§§§ Anisogonium, Presl. Sori as in Diplazium, hut veins anastomosing. 

 Sp. '264-276. Callipteris, Bory. Fig. 38, g. 



* Fronds simple or simply pinnate. Sp. 264-273. 



264. A. (Aniso.) ternatum. Ilk. ; st. slender, 3-6 in. 1. ; fr. ternate, with an 

 oblong-lanceolate terminal j>inna 3-4 in. 1., 1^ in. br., the point acuminate, the 

 edge serrated, tlie base narrowed gradually, and a pair of similar smaller lateral 



