776 93. OPHIOGMSSDM. § 1. EU-OPmOGLOSSUM. 



6 — 25 C.M. high. Barren segment placed (often considerahly) below the middle, 

 ovate, lanceolate, oval or rarely suhrhomboidal, ± I'/j — 9 c.M long, + 

 1 — 4 c.M. broad, sessile or with a haft, the broadest part below the middle, 

 the base broadly cuneate, rounded or subtruncate, rarely + cordate, the 

 apex obtuse or subacute, whether or not apiculate, the marginal cells with 

 the outer wall convex. Texture flaccid or subcarnose, thin when dry; veins 

 distinct: costa flexuose, somewhat stouter near the base, often indistinct to- 

 wards the apex. Fertile spike with the peduncle to + 3 X longer than the 

 barren segment. 



^ar. l9.iiceolatiui(i : Whole plant 10 — 18 c.M. high. Barren seg- 

 ment lanceolate, 3 — 4 c.M. long, to 1 c.M. broad, placed a little below the 



middle, acute at both ends ; marginal cells ? ; peduncle ± 3 — 5 c.M. 



long. 



Trop. Asia, Australia, New Zealand, New Caledonia, Japan; — var. lan- 

 ceolatum: Java. 



• (11) O. reticnlatnm, X., Hk. Bk., Syn. Fil., 446; Prantl, 0- 

 phiogl, 330, tab. VIII, fig. 32; Bedd., Ferns S.I., tab. LXX; Hk. & Grev., Ic. 

 Fil., tab. XX; Christ, Farnkr. d. Erde, fig. 1137. 



Rhizome not tuberous. Fronds 1 — 2, the whole plant 10 — 30 c.M. high. 

 Barren segment placed at or sometimes considerably below the middle, 2 — 8 

 c.M. long, I'/j — 7 c.M. broad, with a haft, oblong, rarely reniform, the apex 

 obtuse, often rounded, rarely subacute, often apiculate, the base cordate, ra- 

 I'ely subtruncate, the margin quite continuous, i. e. the marginal cells with 

 the outer wall straight. Texture mostly thin, rarely rigid; veins distinct, the 

 midrib somewhat stouter near the base, flexuose, becoming finer towards the 

 apex. Fertile spike + 2'/2— 4 c.M. long, on a slender peduncle often 3X 

 as long as the barren segment. 



OPHIODERMA. 



Fronds to about 30 cm. long. (12) 0. intermedium. 



Fronds RO em., nr rn.mrp. Innn. (13) 0. pendulum. 



• (12) O. intermedium, Jifc., Hk. Bk., Syn. Fil., 446; Hk., Icon 

 PI., X, tab. GMXCV, 



