ACROSTICHUM. 



523 



subulate pale-brown scales ; texture moderately firm ; veins distant, distinct, 

 erecto-patent ; both surfaces thinly coated with linear-subulate reddish-brown 

 scales 1 lin. 1. ; fertile fi: smaller, with a st, 4-8 in, 1., overtopping the barren 

 ones. — Fil. Bras. p. 86. *. 23. 



Hab. Central Brazil. 



63*. A. aecedens, Mett. ; rhizome creeping ; scales black, rigid, 2-3 in. 1., ovate- 

 lanceolate, obscurely ciliated ; barren fr. linear, 4-5 in. L, under ^ in. br., nar- 

 rowed to both ends ; edge revolute, its st. 2-3 in. ; texture subcoriaceous ; scales of 

 upper surface large, roundish, hyaline, ciliated, of lower ovate, reddish, densely 

 ciliated, the edge paler ; veins immersed, subpatent ; fertile fr. 6-7 in. 1., under 

 f in. br., with a shorter st. — Kuhn, Linn. 36. p. 49. 



Hab. Andes of Bolivia, Mandon. 



66*. A. Schmitdi, Mett. ; rhizome short-creeping ; scales brown, membranous, 

 ovate-acuminate, entire j st. tufted, 1-5 in., clothed like midrib below with 

 patent pale ferruginous ovate-lanceolata acuminate entire scales ; ha/rren fr. 

 linear, 2-8 in. 1., 4-6 lin. br., narrowei to both ends ; texture subcoriaceous ; 

 v^ns distinct, 1 lin. apart ; scales stellate, membranous, not dense ; fertile fr. 

 linear, short-stalked.— ^mA», lAnn. 36. p. 51. 



Hab. Mexico. — Habit o£ tectum, with different scales. 



56*. A. furfuraceum, Mett. ; rhizome stout, short-creeping ; scales dense, rigid, 

 castaneous, linear-subulate, dentato-ciliate ; barren fr. linear, 8-9 in. 1., f in. br., 

 narrowed to both ends, its st. 3-6 in., with dense ovate-acuminate brqwn-black 

 scales ; te^etre coriaceous ; veins close, subpatent ; scales of surfaces membranous, 

 furfuraceous, reddish, deciduous, of edge dense and persistent, of midrib blackish, 

 persistent, ovate ; fertile fr. narrower, with a st, as long as the blade. — Kuhn, 

 Linn. 36. p. 61. 



Hab. Costa Blca, Hoffmmm, 82. 



62*. A. laminarioides, Bory ; rhizome stout, woody, short-creeping ; scales 

 firm, linear, brown-black ; barren fr. lanceolate, 1^-2 ft. 1., 1-1^ in. br., narrowed 

 gradually to both ends, with a grey furfuraceous 6-9 in. st. ; texture subcori- 

 aceous ; veins close, immersed, patent ; upper side thinly, lower densely coated 

 with minute grey peltate densely ciliated scales with a brown dot in the centre ; 

 fertile fr. 6-8 in. I., ^-| in. br., with a shorter st. — Fie, Acrost. t. 12 ; Hk. Sp. 

 Fil. 5. p. 235, 



Hab. Guiana, Appvm, 1033, &o. 



65*. A. Dechenii, Kuhn ; rhizome creeping, densely clothed with black shining 

 deeply laciniated scales ; sterile fr. lanceolate, leather-brown when dried, 9-12 

 in. 1., 1 in. br., gradually narrowed to both ends, densely clothed below, thinly 

 abovr with ovate ferruginous deeply lacerated scales, its st. above a foot long, 

 with similar scales ; veins 1-2 lin. apart, free or rarely uniting in an intramar- 

 ginal arch ; fertile fr. unknown. — Fil. Afr.p. 16. 



Hab. Mount Kilimanjaro, East Tropical Africa, Kersten. 



109*. A. (Chrys.) Wallii, Baker; rhizome slender, wide-creeping; scales 

 minute, grey, lanceolate-acjiminate ; sterile fr. linear, subsessile, 8-9 in. 1., 

 under J in. br., narrowed to both ends, obscurely repand ; texture thin but rigid ; 

 swrfa^es naked, bright-green ; midrib stramineous ; veins slender, immersed, 

 forming a single costal rgw of long areolae, usually with a free decurved veiijlet 



