ACROSTICHTJM. 619 



7*. A. feegeense, IIools:. ; rhizome woody, thick, short-creeping ; scales dense, 

 large, lanceolate, bright-brown ; barren fr. oblanceolate, 4-12 in. 1., 9-16 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.— ;S^. Fil. S. p. 199. Elaphoglossnm, Brack Fil. Wilkes, p. 73, 



Hab. Viti group, Brackmridge, Milne ; Samoa, Powell, 121, Vdtch. 



9*. A. Barteri, Baker ; cavd. 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. I. ; texture rigidly sub- 

 coriaceous ;, surfaces naked; veins fin ' ' -■•■,, , , 

 fertile fr, smaller, with a longer stem. 



Hab. Upper Guinea, Brass, and Sierra Leone, Barter, 181(J. 



9*. A. lonchophyllum, Pde ; 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. I. ; 

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

 fr. smaller with a longer stem. — Fourn. Fil. Mem. p. 65. 



Hab. Mexico, Bowgeau, 2888. — Differs mainly fiom flaeddAjim 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. 1., ^-j 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, 1-1 J in. 1. ; fertile fr. shorter, broader, narrowed more sud- 

 denly at base, its st. -rather longer, 



Hab, Andes of New Granada, Patim, Pea/rce. 



19. Mettenius and Kuhn in Linnsea, 36, p, 55 to 62, have described as species 

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

 near it ; y\z.,fmiaim, attenuatum, Hoffma/nMi, poh/stichum, remohens, ca/rtilagineum, 

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

 Here belong also A. ht/menodiastrum, papyracenm, and amplissimum of F^e, and 

 A, l^ieillardii, 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, J-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, l-lj ft, 1,, 2 in. br., sub- 

 acute, narrowed suddenly at the base, bordered with 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 



