772 93. OPHIOGLOSSDM. 



Arrangement of the sections. 



$ 1. EU-OPHIOGLOSSUM. FertUe spike single, mostly simple, rarely 2—5- 

 partite, arising from the base of the barren segment, which is sometimes 

 wanting or rudimentary. Rhizome naked, hypogeous. Hk. Bk., Syn. Fil., 

 tab. IX, fig. 73; Diels, in Engl. & Prantl, Nat. M.Fam., 1*, fig. 259, 

 A & C. j*^ or terrestriaLJ 



§2. OPHIODERMA. Fertile spike as in § 1, but arising from the centre of 

 the barren segment. Rhizome papillose, epiphytical/T)iels, 1. c, fig. 265, A. 



§ 5. CHEiROGLOSSA. Fertile spikes many or numerous, springing from the 

 base and margin of the barren segment. Rhizome long-hairy, epiphyti- 

 cal. Diels, 1. c, fig. 265, B— C. (Not in Malaya). 



§ 1. EU-OPHIOGLOSSUM. 



a. Barren segment wanting or rudimentary. (l) 0. simplex. 



a.a. Barren segment distinctly developed. 



b. Barren segment linear or linear-lanceolate, more than 5)>(^as long as broad. 



X. Fronds ± 4\ c.M. high, the barren segment i — i\ c.M. long, 



i—2 m.M. broad. (2) 0. gramineum. 



x.y.. Fronds 7—20 c.M. high, the barren segment + Vl^—8 c.M. 



long, 2—6 m.M. broad. (3) 0. inconspicuum. 



h.h. Barren segment lanceolate or oblong, less than 5 X ** l<»*9 "« broad. 



c. Barren segment cuneate at the base. 



d. Barren segment small, mostly '/^ — i cJf. long. 



§ Barren segment roundish or oblong, more than '/, 



as broad as long. (4; O.pumilum. 



§S Barren segment elongate, less than \ as broad as 



^^9- (5) macrorrhizum. 



«i.«i. Barren segment [larger, mostly i—5 c.M. long. 



e. Barren segment placed quite at the base of the whole 

 f'''^- (6) 0. fibrosum. 



e.e. Barren segment placed above the base of the frond. 

 f. Veins indistinct. 



+. The whole plant 5—iO c.M. high, with the 

 barren segment ± ovate, broadest at or below 

 the middle. (7) q. parvifoliuiu. 



