﻿32. HUMATA. § 2. LEUCOSTEGIA. 293 



LXXIX; C. Chr., Ind. Fil. ; Leucostegia immersa, Pr., Bedd., Handb. Ind. Ferns, 

 51; Acrophoriis immersus, Moore, Bedd., Ferus S.I., tab. XI; — var. amplis- 

 sima, Christ, Ann. Btz., XV, 90; — var. minuta; — var. nana, Copel., Philipp. 

 Journ., I, Suppl., 147. 



Rhizome wide-creeping, clothed with lanceolate, ferrugineous fibrils. Stipes 

 10-50 c.M. long, firm, erect, naked. Fronds 30— 4S c.M. long, IS — 25 

 c.M. broad, triangular, 3-pinnate. Lowest pinnulae lanceolate-triangular, 5 — 8 

 c.M. long, with the ultimate divisions rhomboidal, the base, obliquely cuneate, 

 the upper side broader than the lower one, the edge lobed, with the 

 lobes rounded and crenate above. Texture herbaceous or flaccido-coriaceous ; 

 surfaces naked. Sori commonly large, immersed, + prominent on the upper 

 surface, 1 — 6 to a leaflet; indusium broader than long, the outher edge 

 semiorbicular, the base straight. 



Var. aiii|iliiSjiii]ia : Fronds lanceolate, to 75 c.M. long; indusium 

 reniform. 



War. liiinuta: Fronds small, to 10 c.M. long, to 5 c.M. broad. Sti- 

 pes slender. 



War. itaoa: Stipes 5 — ^10 c.M. long, filiform; fronds 5 — 10 c.M. long, 

 2-pinnate; pinnae obtuse; pinnulae rounded. 



Philippines, Java, Malacca; Br. India; — var. amplissima: Celebes; — 

 var. minuta: Timor (Forbes, no. 3522); — var. nana: Luzon. 



(19) H. Hosei, v. JL. ». JK.,* Davallia Hosei, Bk., Journ. of Bot., 

 XXVI, 523; C. Chr., Ind. Fil. 



Rhizome creeping, the scales minute, ad pressed, linear, brown. Stipes 

 naked, brownish, 50 — 40 c.M. long. Fronds lanceolate-oblong, 2-pinnate, 

 45 — 60 c.M. long, 12 — 15 c.M. broad. Pinnae distant, lanceolate, erecto-patent, 

 2 — 2^/2 c.M. broad, cut down to the rachis into unequal-sided, lanceolate- 

 oblong, deeply crenate pinnulae + 4 — 5 m.M. broad, with the upper base 

 produced and the lower cut away. Texture firm ; surfaces naked ; veins 

 indistinct, I to each lobule. Sori small, 1 at the base of each lobule; indu- 

 sium rigid, naked, as broad as long. 



Borneo. 



* (20) H. hymenophylloiflesi, Copel., Polypod. Philipp., 51 ; 

 Davallia affmis, H/c, Rac, Flor. Btz., I, 129; Hk., Spec. Fil., I, tab. LII, B; 

 D. hymenophylloides, Kuhn, Ann. Mus. Bot. L.B., IV, 286; (not Bl.), Christ, 

 Farnkr. d. Erde, fig. 957 ; C. Chr., Ind. Fil. ; Acrophorus affmis, Moore, Bedd., 



