518 HEMIONITIS. 



3*. V. debilis, Kuhn ; rhizome creeping ; scales linear, pale-brown ; fr. sessile, 

 tufted, ligulate, curved, blunt, narrowed at base, 1^-2 in. 1., 1 lin. br. ; texture 

 rigidly subcoriaceous ; midrib distinct from the base to the tip ; veins distant, 

 simple, oblique, very short and obscure ; sorus in a furrow near the midrib on 

 both sides in the upper half of the frond, the edge beyond it flat and not thick. — 

 Linn.QQ.p.&I. 



Hab. Sarawak, Borneo, Titos. Lobh. • 



3*. Y. sulcata, Kuhn; rhizome short-creeping; scales dense, lanceolate, pale- 

 brown ; fr. crowded, ligulate, obtuse, sessile, narrowed to the base, 2-4-in. 1., 

 •1^ in. br. ; sorus in an intramarginal deep furrow confined to the very much thick- 

 ened upper half of the frond where the midrib and veins are quite lost ; midrib 

 visible in the barren lower half ; veins forked ; margin beyond the sorus as thick 

 as- the central portion of the lamina. — Linn. 36. p. 68. 



Hab. Ceylon, Thwaites, 3807, and Society Islands. 



6*. V. OrVignyana, Mett., Kuhn, Linn. 36. p. 67, Bolivia, differs from stipitata 

 by its naiTower frond and broader gradually narrowed scales, obtusely densely 

 toothed, and formed of several rows of cells ; and V. gracilis, Moritz, Kuhn, 

 Linn. 36. 67, Columbia, is like Ka/rsteniana, but with ovate scales, a short winged 

 stem, more ascending veins, and sorus nearer the margin. 



LIX.— HEMIONITIS. Page 398—9. 



1. H. ZolUngeri, Kurz ; fr. tufted in a dense rosette ; sterile nearly sessile, 

 oblanceolate, entire, 3-4 in. 1. ; texture membranous ; main veins distinct nearly 

 to edge, with copious fine irregular areolae between them ; fertile linear, slightly 

 repand, 3 in. 1., J in. br., with a st. 1^2 in. 1. ; sori in 2-3 rows parallel with 

 midrib and edge, anastomosing by short cross-bars. — J<mrn. Asiat, iSoo. Beng. 

 39. part 2. p. 90. *. 5. 



Hab. Java, . 



LX.— ACROSTIC HUM, L. Page 399—425. 



1*. A. glabratum, Mett, ; rhizome slender, wide-creeping ; scales minute, 



oblong, ferruginous, acute; barren fr. oblanceolate-spathulate, 1^-2 in. 1., 4-5 



, lin. br., the edge revolute, its st. \-\ in. 1. ; texture coriaceous ; surfaces glabrous ; 



veins lax, forked ; fertile fr. linear, 4-5 in. 1., 2 lin. br., with a st. 1 in. 1. — Ann. 



8c. Nat. ser. 4. vol. 15. p. 65. 



Hab. New Caledonia, Vieillard. 



6*. A. Tatei, Baker ; rhizome threadlike, wide-creeping, thinly clothed with 

 minute membranous brown broad lanceolate scales; barren fr. lanceolate, 

 6-8 in. 1., 9-10 lin. br., narrowed gradually to both ends, irregularly crispato- 

 repand ; st. \ in., stramineous, furfuraceous ; texture membranous ; both sides 

 green, naked ; veins distant, distinct, simple or forked, stopping short 1 line 

 within the edge and distinctly thickened at the tip; fertile fr. rather shorter 

 and narrower, the st. similar. 



Hab. Chontales, Nicaragua, Ralph Taie. 



6*. A. rampans. Baker ; rhizome filiform, wide-creeping ; scales firm, lanceo- 

 late, dense, minute, brown ; barren fr. lanceolate, 1^-3 in. 1., |-i in. br., bluntisli, 

 narrowed at the base very gradually into a pale stramineous, st. 1-2 in. 1., 

 clothed throughout with deciduous ovate-lanceolate scales ; texture rigidly sub- 

 coriaceous ; surfaces naked ; veins subdistant, distinct, ascending, simple or 

 forked ; fertile fr. much smaller, with a longer stem, 



Hab. Cuba, Wright, 3969, 



