﻿53. DIPLAZIUM. § 2. ANISOGONIUM. 423 



Stipes naked, 12 — 13 c.M. long. Fronds deltoid, simply pinnate, + 30 c.M. 

 long. Pinnae ± 3 — S-jugate, lanceolate, acuminate, entire, sessile, ±15 c.M. long, 

 5 — 6*/2 c.M. broad, cordate at the base. Texture moderately firm; surfaces 

 naked; veins 3 — 5-jugate, anastomosing towards the margin. Sori linear. 



Java. 



(51) 1>. a^liismifoUuBll, v. A. «. R.f D. Cumingii, C. CAr., Ind. Pil.; 

 Asplenium alismae folium, Hk., Hk. Bk., Syn, Fil., 243; Callipteris alismaefolia, 

 J. Sm, Copel., Polypod. Philipp., 70 ; Aidsogonium alismae folium, Christ, Fil. 

 Saras., Ill, 235; Oxygonhim alismaefolium, J. Sm., (oldest name). 



Stipes 5 — 15 c.BI. long, firm, erect, scaly throughout. Fronds varying in 

 shape from simple, oblong-lanceolate, 15 — 25 c.M. long, 5 — 8 c.M. broad, 

 entire, acuminate, to ternate or pinnate with a large terminal and to 3 pairs 

 of lateral pinnae, each like the entire frond of the simple form. Texture 

 coriaceous; veins ± 3 to a group in the inner half, anastomosing copiously, 

 with hexagonal areolae towards the edge. 



Celebes, Philippines. 



« (52) W. fraxinifolium, J»r., Rel. Haenk., I, 49 ; D. elegans, Hk. 



Icon. PI., X, tab. GMXXXIX— CMXL ; D. lineolahm, BL. Enum., 191; Asple- 

 niiitn lineolatum. Melt., Hk. Bk., Syn. Fil., 243 ; Callipteris elegans, J. Sm., 

 Copel., Polypod. Philipp., 70; Anisogonium lineolatum, Bedd., Ferns Br.L, II, 

 tab. CCCXXX; A. elegans, Pr., Epim., 93. 



Rhizome erect, the scales brown, lanceolate. Stipes erect, firm, grey, 

 15 — 25 c.M. long, scaly below. Fronds occasionally simple, usually with a 

 terminal pinna and 3 — 6 pairs of lateral ones, which are 15 — 30 c.M. long, 

 4 — 5 c.M. or more broad, entire, or serrate towards the often suddenly acumi- 

 nate apex, the base subcuneate or rounded. Texture coriaceous ; rachis naked ; 

 veins 4 — 8 to a group, uniting slightly towards the margin. — A small form 

 with bluish-green, succulent fronds and 1 — 3 lateral pinnae was reported 

 from Celebes (Christ, Ann. Btz., XV, 122). 



Malaya; Japan. 



(53) U. angiiistatiin], Amunn, Nat. Tijdschr. Ned. Ind., XXIII, 406. 



Stipes ± terete, smooth, reddish-brown, glossy. Fronds ± ovate, 30—45 

 c.M. long (incl. the stipe), pinnate. Pinnae alternate, the higher ones sessile, 

 decurrent, the lower short-stalked, lanceolate or oblong, acuminate, the base 



