22. DEYOPTERIS. § 2. NEPHRODIUM. 179 



pinnae. Fronds (exclud. the auricles) + 25 — 35 cm. long. Pinnae + 

 1 — 3 on a side below the terminal one, lanceolate-oblong; terminal pinna 

 the larger, + 15—20 cm. long and 6-9 cm. broad, of the barren fronds 

 the largest, subabrupth^ caudate-acuminate, rotundate-cuneate at the base, 

 subentire or coarsely crenate; lateral pinnae somewhat smaller, distant, 

 sessile. Texture coriaceous; upper surface copioush^ appresso-pilose ; 

 under surface densely finely pubescent oq the veins, less so and glandular 

 between the veins, the glands minute, round, yellow; veins + 15 — 20 

 on a side, nearly all anastomosing; areolae often subrectangular. Sori 

 terminal on the veins, at length confluent; indusium ciliate, rudimentary 

 or very small. 

 Sumatra. 



(85a) ». Roeineriana, Rst., in Nov. Guin., VIII, Bot., 723. 



Rhizome ' erect, the apex clothed with ferrugineous, lanceolate, 

 acuminate scales. Stipes tufted, ± 3 cm. long, slender, hirsute, as is 

 the rachis. Fronds oblanceolate-oblong, + 8-10 cm. long, 2'/2 — ^''^ cm. 

 broad, shortly acuminate, moderately gradually narrowed towards the base. 

 Pinnae spreachng or more ascending, subapproximate ; central pinnae the 

 largest, sessile,- linear-oblong, + 1 '/j — 2'., cm. long, 4 — 6 mm. broad, 

 blunt and subentire at the apex, broadly crenate-lobate at the middle, 

 cuneate at the base, the upper base produced, auricled; lower pinnae 

 more or less stalked and gradually reduced; higher pinnae abbreviated, 

 adnate, free or connected with the terminal one; terminal pinna linear- 

 oblong, rather similar to the central ones, undivided, or pinnatifid at the 

 base. Texture subcoriaceous ; surfaces soon glabrescent or somewhat 

 hairy on the costae and veins ; main veins slender, oblique ; veins ± 

 2 — 3 on a side, the lowest anastomosing. Sori in 1 — 2 rows on each side 

 of the costa ; medial on the veins or approaching the main veins ; indusium 

 naked, persistent. 



New Guinea. 



(87) D. megaphylla, C. Chr. 



This species is construed as including 2 distinct forms : D. megaphylla 

 C. Chr. and D. pseudomegaphylla v. A. r. E. 



(87fl) D. inegapliylla, C. Cfcr.,- — var. abbreviata, Rst., in Fed., 

 Rep., XII, 529. 



Pinnae numerous, inserted on subcallous increasings of the rachis, 



