83. DIPlAZinM. § 1. EUDIPLAZIHM. 407 



dually tapering upwards, pinnate, pinnatifid towards the apex; rachis deeply 

 channelled above. Pinnae numerous, horizontal, oblong, with a broad base 

 and rounded apex, + 1 c.M. broad, the margin slightly crenate, the upper 

 base slightly lobed. Texture coriaceous; veins simple or the lowest forked. 

 Lowest sori sometimes double, the others always single, reaching from the 

 midrib to the margin. 

 Malacca. 



(19) D. cultratum, J»r., Copel., Polypod. Philipp., 73; Asplenium 

 cultmlum, Hk. (not Mett.), Hk. Bk., Syn. PiL, 231. 



Stipes tufted, 10 — 15 c.M. long, grey, naked. Fronds 15—25 c.M. long, 

 7 —10 c.M. broad, the apex pinnatifid, the lower */, pinnate with 3 — 6 pinnae 

 on each side. Lower pinnae distinctly stalked, ± 5 c.M., long, + 2 c.M. 

 broad, the point acute, rather falcate, the edge nearly entire, both sides nar- 

 rowed suddenly at the base, the upper base auricled. Texture subcoriaceous ; 

 veins twice forked; sori linear, slender, reaching the edge but not the midrib. 



Luzon. 



* (20) D. crenato-serratum, Moowe (not Bl.), Christ, Farnkr. 

 d. Erde, 217; D. porrectum, Pr., Bedd., Handb. Ind. Perns, 176; Perns Br.L, 

 II, tab. CCXLV; Asplenium porrectum, Wall., Hk. Bk., Syn. PiL, 230; A. ere- 

 nato-serratum, BL, (oldest name). 



Stipes tufted, to 30 c.M. long or longer, brownish. Fronds 20 — 45 c.M. 

 long, 10—25 c.M. broad, deltoid-oblong, with several to numerous horizontal 

 pinnae on each side. Pinnae lineai'-lanceolate, nearly straight, acute or blunt- 

 ish, the edge varying from slightly crenate to shallowly lobed or broadly 

 toothed, the base + equally and broadly cuneate to truncate and auricled on 

 the upper sidB^^flower pinnae ± I'/i — ^'k c.M. broad, short-stalked, bluntly 

 lobed, longer than the next in order, sometimes shorter or deflexed; highest 

 pinnae erecto-patent, sessile, adnate to the rachis. Texture more or less dis- 

 tinctly coriaceous; rachis naked or slightly pubescent; surfaces naked; main 

 veins pinnate; veins simple or forked. Sori in regular, parallel rows, extending 

 from the midrib to the edge, i — Very variable. 



Malaya. 



* (21) D. Hosei, Chf^st, Bull. Soc. Bot. Belg., XXXIIP, 93. 

 Stipes long, slightly rough like the rachis. Fronds + 30 — 45 c.M. long, 

 ± 14 — 18 c.M. broad, triangular, pinnatifid at the apex. Pinnae + 12 — 20- 



