B3. DIPLAZIUM. § 2. ANISOGONIUM. ' . 423 



Stipes naked, 12 — 15 c.M. long. Fronds deltoid, simply pinnate, + 30c.M. 

 Ipng. Pinnae + 3 — 5-jugate, lanceolate, acuminate, entire, sessile, ± 15 c.M. long, 

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

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



Java. J t*^~ i^i* • 



(51) D. alismifolium, ». A. v. it,.} D. Cumingii, C. Chr., Ind. Fil.; 

 Asplenitim alismaefolium, Hk., Hk. Bk., Syn, Fil., 243; Calliptens alismaefolia, 

 J. Sm, Copel., Polypod. Philipp., 70; Anisogonium alismaefolium, Christ, Fil. 

 Saras., Ill, 233; Oxygonium, alismaefolium, J. Sm., (oldest name). 



Stipes 5 — 15 c.M. 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. 



D. fraxinifolium, I***., Rel. Haenk., I, 49 ; D. elegans, Hk. 



Icon. PL, X, tab. CMXXXIX— CMXL ; D. lineolatum, BL. Enum., 191; Asple- 

 nium lineolatum, Mett., Hk. Bk., Syn. Fil., 243 ; Calliptens elegans, J. Sm., 

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

 tab. CCCXXX; A. elegans, Pr., Epim., 95. 



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. 



(55) D. angujstatam, Amann, 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 



