202 103. SELAGINELLA. A^ PLEIOSTELICAE. 



the main rachis asperulous, with the axillary leaves proportionally large, 

 linear-oblong, subacute, rather 2-auriculate-cordate at the base; pinnae 

 ascending, lanceolate, 5—6 cm. long, TA— 2V2 cm. broad; pinnulae crowded, 

 simple or forked, or the largest pinnate; ultimate branchlets to IV2 cm. 

 long, 2— »3 mm. broad including the lateral leaves. Leaves of the stem 

 remote, erect, partly ovate-lanceolate, partly deltoid-oblong, acute, entire, 

 the base cordate or semicordate, the auricles whether or not produced, 

 not rarely hamato-incurvate ; leaves of the branches very heteromorphous, 

 firm; lateral leaves crowded, ascending or hardly spreading, often imbricate; 

 of the secondary rachises lanceolate-oblong, subacute, or blunt at the very 

 point, entire, pellucid-margined on the upper side, the upper base rotundate- 

 cordate, the lower base more or less auriculate-cordate or inciso-cordate, 

 the largest leaves 2' 2 mm. long, 1 mm. broad; of the ultimate branchlets 

 shorter, sparingly and minutely denticulate on the upper side, the lower 

 base more abruptly truncate-cordate, the largest leaves IV2 mm. long and 



1 mm. broad; intermedial leaves erect or suberect; of the secondary 

 rachises remote, triangular-oblong, subfalcate, bluntish or bluntly short- 

 acuminate, entire or nearly so, the base obliquely rotundate-cordate or 

 truncate-cordate to auriculate-cordate, pellucid-margined, the largest leaves 



2 mm. long; of the branchlets smaller, imbricate, rather obovate-oblanceolate, 

 subfalcate-incurvate, the base broadly obliquely adnate, cuneate on the 

 inner side, produced and narrowly rotundate-cordate on the outer side. 

 Spikes 1 mm. diam. ; sporophylla deltoid-ovate, subacute or bluntish, entire 

 or very sparingly minutely denticulate, pellucid-margined; spores 



Sumatra. 



(170) S. flnium, r. A. *>. JR., Bull. Btz., 1914, XVI, 52. 



Shoots sarmentose, 50 cm. more or less long, branched down nearly , 

 or quite to the base, the stem stramineous, IV2 — 2 mm. thick, 3-stelical, 

 obtusely angular; pinnae ascending, elongate-ovate, to 20 cm. long; 

 pinnulae simple, forked or pinnate; ultimate branchlets 2—8 cm. long, 

 6 — 8 mm. broad including the lateral leaves. Leaves heteromorphous; 

 axillary leaves of the main stem broadly truncate-subcordate, rather 

 broader than long; lateral leaves more or less remote; of the stem 

 deflexed, subpetiolulate, oblong, the largest 5 mm. long, 2 mm. broad, 

 blunt, entire, broadly rotundate-cordate at the upper base, narrowly 

 truncate-cuneate at the lower base; of the secondary rachises similar but 

 horizontal and proportionally narrower; of the ultimate branchlets spreading, 



