94 103. SELAGINELLA. A 1 . MONOSTELICAE. a 4 . ASCENDENTES. 



straight, bluntish, rounded on the upper side at the base, rotundate- 

 cuneate on the lower side, with the upper edge sparingly piloso-denticulate 

 at the centre, ciliate at the base, the lower edge entire, the largest leaves 

 of the ultimate branchlets 1 V 2 mm. long and V mm. broad ; leaves of 

 the upper plane of the branches obliquely subfalcate-oblong, acuminate, 

 entire, rotundate-cuneate on the inner side at the base, produced on the 

 outer side, those of the ultimate branchlets to 3 /< 1 mm. long. Spikes 

 solitary, 510 mm. long, 1V mm. diam. ; sporophylla deltoid-oblong, acute, 

 piloso-denticulate, slightly keeled, the largest 2 mm. long; macrospores 

 dirty-yellowish-white, rugulose with short or long, flexuose or branched 

 rumples on the basal side; microspores orange or yellowish, provided 

 with copious sessile, capitate projections on the basal side. 

 Luzon. 



(36) S. sibiiyauensis, n*ero., Fed., Rep., X, 97. 



Shoots probably 50 cm. long, the lower part simple, stipitiform, 

 stramineous-green, quadrangular, rather compressed, to 3 mm. thick, the 

 upper part compound. Leaves heteromorphous; leaves of the lower plane 

 very unequal-sided and broadly obliquely ovate on the stem, falcate- 

 oblong on the branchlets ; those of the stipe ascending, remote, acuminate, 

 with the upper edge minutely denticulate, ciliolate in the broadly rotundate- 

 cuneate and pellucid-margined lower half, ciliate at the subauriculate 

 base, the lower edge very minutely denticulate at the apex, sparingly 

 ciliate at the narrowly truncate base, the largest leaves 4V* mm. long 

 and 2V mm. broad; those of the main and secondary rachises similar 

 but somewhat longer ; of the main rachis spreading ; of the branchlets 

 close, ascending, subacute or subobtuse, slightly spuriously veined, with 

 the upper edge sparingly piloso-denticulate and pellucid-margined in the 

 lower half, sparingly ciliolate towards the cuneate base, the lower edge 

 entire, or sparingly ciliate at the narrowly rotundate-cuneate base, the 

 largest leaves 2 2V mm. long, V 8 A mm. broad ; leaves of the upper 

 plane erect, falcate-ovate, aristate-acuminate ; of the stipe remote, with 

 the outer edge involute, ciliate at the produced, auriculate base, the inner 

 edge minutely denticulate, ciliate at the base, the largest leaves 5 mm. 

 long, 2 mm. broad, the cusp V as long as the blade ; of the main rachis 

 incurvate-auriculate on the outer side at the base; cuneate on the inner 

 side at the base; of the branchlets similar, imbricate, entire, smaller, 

 rotundate-auriculate on the outer side at the base, the largest 1Y mm. 



