103. SELAGINELLA. A\ MONOSTELICAE. SL*. ASCENDENTES. ^3 



base, the lower side subentire, rotundate-cordate at the base, the largest 

 leaves 5 mm. long and 2 mm. broad; of the upper plane subfalcate- 

 obovate, shortly aristate-acuminate, piloso-denticulate, ciliate at the base, 

 the outer base incurvate-cordate-auriculate, the inner rotundate, the largest 

 leaves 3 mm. long and 2 mm. broad ; leaves of the branches growing 

 gradually smaller, of the branchlets the smallest; of the lower plane 

 imbricate, subsimilar to those of the main rachis, falcate-lanceolate, more 

 distinctly pellucid-margined and spuriously nerved, the upper side cuneate 

 in the lower half, narrowly rounded at the very base, the lower side 

 rotundate-subtruncate at the base, the largest 2 — 3 mm. long and 'A — ] 

 mm. broad; of the upper plane less denticulate or rather entire, not or 

 sparingly ciliate at the base, hardly Vii mm. long and 'A mm. broad, the 

 outer base cordate-rotundate, the inner base narrowed. Spikes 5 — 9 mm. 

 long, 1 — IV2 mm. diam. ; sporophylla subisomorphous, subdeltoid-ovate, 

 shortly aristate-acuminate, indistinctly pellucid-margined, piloso-denticulate, 

 keeled, those of the ventral side somewhat larger, to IVj mm. long; 

 macrospores yellowish or whitish, rugulose to subreticulate on the basal 

 side; microspores yellowish or minium-red, shortly stipitate-capitate-ver- 

 ruculose on the basal side. 

 Luzon. 



(35) S. Itacanif, Mieron., Fed., Rep., X, 43. 



Shoots 30 — 40 cm. long, the lower part simple, stipitiform, compressed, 

 quadrangular, smooth, dirty-stramineous, to 2V2 mm. thick, the upper 

 part sub-3-pinnate, broadly deltoid-ovate or subrotund in outline. Leaves 

 heteromorphous on both stem and branches; lateral leaves spreading; of 

 the stipe remote, broadly falcate-ovate, dark-green above, glaucous-green 

 beneath, shortly acuminate, rounded at the base but more broadly so on 

 the upper side, with the upper edge minutely denticulate, ciliate at the 

 base, the lower edge entire, sparingly denticulate at the base, the midrib 

 slightly thickened in the upper part, the largest leaves S'h mm. long and 

 2Va mm. broad; leaves of the upper plane erect; of the stipe remote, 

 obliquely falcate-ovate, mucronate-acuminate, the mucro 'A as long as the 

 blade, the edges piloso-denticulate but more shortly in the lower part, 

 the base rotundate-cuneate on the inner side, produced and hamate- 

 cordate on the outer side, the largest leaves 3 mm. long; leaves of the 

 main rachis similar to those of the stipe but growing gradually narrower ; 

 lateral leaves of the branches obliquely oblong or ovate-oblong, nearly 



