ACROSTICHTJM. 519 



7*. A. feegecnse, Hook.; rhizome woody, thick, short-creeping; scales dense, 

 large, lanceolate, bright-brown ; barren fr. oblanceolate, 4-12 in.'l., 9-15 lin. br., 

 blunt or subacute, narrowed very gradually into a st. 2-4 in. 1. ; texture rigidly 

 subcoriaceous ; both sides scattered over with minute stellate peltate scales in an 

 early stage only ; veins distinct, forked, close ; fertile fr. smaller, with a longer 

 stem. Sp. Fil 5. p. 199. Elaphoglossum, Brack. FiL Wilkes, p. 72. 



Hab. Viti group, BracTcenridrje, Milne ; Samoa, Powell, 121, Veitch. 



9*. A. Barteri, Baker ; caud. suberect ; scales lanceolate, minute, brown, 

 membranous ; barren fr. lanceolate, narrowed gradually to both ends, 4-9 in. 1., 

 9-14 lin. br., its st. stramineous, slightly scaly, 2-3 in. 1. ; texture rigidly sub- 

 coriaceous ; surfaces naked ; veins fine, close, obscure, forked, erecto-patent ; 

 fertile fr. smaller, with a longer stem. 



Hab. Upper Guinea, Brass, and Sierra Leone, Barter, 181 rf. 



9*. A. lonchophyllum, Fee ; caud. suberect ; scales lanceolate, minute, brown, 

 membranous ; barren fr. lanceolate, narrowed gradually from the middle to 

 both ends, 1 ft. 1., 1-lj in. br., its st. stramineous, slightly scaly, 2-3 in. 1. ; 

 texture membranous ; surfaces naked ; veins fine, forked, close, immersed ; fertile 

 fr. smaller with a longer stem. Fourn. Fil. Mex. p. 65. 



Hab. Mexico, Bourgeau, 2888. Differs mainly from flaccidum by its stalked barren 

 frond. 



15*. A.Patini, Baker; rhizome woody, wide-creeping, 3-4 lin. thick, densely 

 clothed with large brown lanceolate membranous scales ; barren fr. ligulate, 

 bluntish, narrowed gradually at the base, 8-12 in. L, ^-f in. br., the edges 

 thickened into a distinct thick raised border ; texture rigidly coriaceous ; surfaces 

 naked ; veins immersed, quite hidden, forked, moderately close and fine ; st. 

 brown-stramineous, l-l in. 1. ; fertile fr. shorter, broader, narrowed more sud- 

 denly at base, its st. rather longer. 



Hab. Andes of New Granada, Putin, Pearce. 



19. Metteniusand Kuhn in Linnaea, 36. p. 55 to 62, have described as species 

 the following forms, which are either varieties of latifolium in our sense or very 

 near it ; \\z.,firmum, attenuatum, Hoffmanni, polystichum, revolvens, cartilagineum, 

 compactum, sporadolepis, Lessoni, macrophyllum, corpulentum, and grandifolium. 

 Here belong also A. hymenodiastrum, papyraceum, and amplissimum of Fee, and 

 A. Vieillardii, Mett. Ann. Ser. 4 vol. p. 15. p. 55, from New Caledonia. 



21*. A. marginale, Baker; rhizome woody, wide-creeping, 2-3 lin. thick ; 

 scales dense, linear-subulate, bright-brown ; barren fr. oblong-lanceolate. ft. 1., 

 2 in. br., narrowed gradually to the point, suddenly at the base, bordered by a, 

 dense fringe of minute spreading brown lanceolate scales ; its st. 3-4 in., thinly 

 clothed with scales like those of the rhizome ; texture rigidly subcoriaceous ; 

 surfaces naked ; veins distinct, subpatent, moderately close ; fertile fr. ligulate, 

 blunt, -|-f in. br., with a similar border, its st. reaching 1 ft., the upper side 

 clothed with adpressed deciduous scales. 



Hab. Andes of Ecuador, 11,000 ft., Spruce, 5615. 



23*. A. Prestoni, Baker ; caud. thick, woody, short-creeping ; scales dense, 

 brown, lanceolate, membranous ; barren fr. lanceolate, 1-1| ft. 1., 2 in. br., sub- 

 acute, narrowed suddenly at the base, bordered witli a dense persistent fringe of 

 minute brown lanceolate membranous scales, its st. 6-9 in., clothed with dense 

 spreading linear-subulate brown-black scales ; texture moderately firm ; surfaces 

 naked except the midrib beneath, which is densely clothed with firm brown-black 



