66 103. SELAGINELLA. A 1 . MONOSTELICAE. & 2 . DECUMBENTES. 



cusp Vs V as long as the blade. Spikes 5 6 mm. long, square, 1 Y mm. 

 diam. ; sporophylla nearly isomorphous, ovate, aristate-acuminate, minutely 

 denticulate, keeled, the largest I 3 2 mm. long; macrospores cream- 

 yellow, provided with moderately thick rumples on the basal side; 

 mierospores yellow, provided with sparingly scattered, sessile, capitate 

 projections on the basal side. 

 New Guinea. 



(7) S. ceratoeaulos. . A. r. JR., Bull. Btz., 1914, XVI, 41. 



Shoots ascending from a short-creeping base, to 10 cm. long, dicho- 

 tomous at the base, the stem 3 A mm. thick, compressed when dry; 

 branches pinnate, with the rachis 3S 5 mm. broad including the lateral 

 leaves; pinnae remote, ascending, to 1Y cm. long, simple or forked, or 

 the largest sparingly subpinnate; ultimate branchlets to 1 cm. long, to 

 3Va mm. broad. Leaves heteromorphous ; lateral leaves nearly equal-sided, 

 oblong, hardly falcate, shortly acuminate, minutely denticulate on both 

 sides, obliquely rotundate or rotundate-cuneate at the base ; of the main 

 rachises 2 2*A mm. long, to 1 1 U mm. broad, somewhat remote, spreading ; 

 of the branchlets to 2 mm. long and Y* as broad, more ascending, 

 subcontiguous to imbricate; intermedia! leaves erect, oblong, acuminate, 

 narrowly pellucid-margined and minutely denticulate on both sides, the 

 inner base more or less cuneate, the outer base producto-rotundate and 

 provided with 03 short ciliae ; of the main rachises somewhat remote, 

 r/2 mm. long; of the branchlets imbricate, shorter. Spikes terminal, 

 solitary, square, 1 2 mm. diam.; sporophylla triangular-ovate, acute, 

 keeled, minutely denticulate and pellucid-margined, at length spreading, 

 the largest IS mm. long; macrospores numerous, white, smooth; micro- 

 spores 



Java. 



a. HoillOeOStaeliyg. 3. Hadicante*. 



f. Lateral leaves entire, at best obsoletely denticulate at the base. 



Ultimate branchlets under 7Y 2 mm. broad. (8) S. uncinata. 



** Ultimate branchlets more than 7 l i* mm. broad. (9) S. alopecuroides. 

 l.f . La-teral leaves more distinctly denticulate or ciliate, at least on one side 



at the base. 



