103. SELAGINELLA. A'. MONOSTELICAE. a*. ASCENDENTES. 103 



quadrangular, greenish- or greyish-straminoous, to 3 mm. thick at the 

 base, the upper part pinnately decompound, ovate or subrotundato in 

 outline; pinnulae with the branches once or more times forked; ultimate 

 branchlets 8 — 4V2 mm. broad including the lateral leaves. Leaves hetero- 

 morphous on both stem and branches; lateral leaves of the stipe remote, 

 the lower suberect, the higher spreading, unequal-sided, oblique-ovate, 

 2-auriculate-cordate and ciliate at the base, shortly acuminate, with the 

 upper (inner) side minutely piloso-denticulate, ciUate towards the base, 

 narrowly subpellucid-margined and the lower (outer) side minutely piloso- 

 denticulate towards the apex, the largest leaves 3 mm. long and 2V4 mm. 

 broad; of the main rachis similar but more broadly ovate, the acumen 

 bluntish, the upper base cordate-rotundate, the lower truncate-rotundate, 

 the aligular side more or less distinctly spuriously nerved, the largest 

 leaves 5 mm. long and 3 mm. broad ; of the ultimate branchlets similar 

 but smaller, imbricate, distinctly spuriously nerved, the largest 2 — 3 mm. 

 long and hardly more than 1 mm. broad, rather narrowed at the base; 

 leaves of the upper plane erect; of the stipe broadly subfalcate-ovate, 

 shortly aristate, ciliolate-denticulate, obliquely cordate and ciliate at the 

 base, coqiously pellucid-dotted, the largest leaves 3 mm. long, with the 

 cusp V4 as long as the blade; of the main rachis similar but somewhat 

 larger ; of the ultimate branchlets similar but smaller, subentire or sparingly 

 piloso-denticulate, the cusp relatively shorter and the base more shortly 

 ciliolate. Spikes solitary, 3 — 7 mm. long, 1 — I'A mm. diam. ; sporophylla 

 broadly deltoid-oblong, shortly aristate-acuminate, piloso-denticulate, the 

 largest 1 mm. long; macrospores reddish- or yellowish- white, provided 

 with short or elongated, flexuose, branched or connected rumples on the 

 basal side, the apical ribs encircled by an equatorial crest; microspores 

 minium-red or reddish-brown, provided with shortly stipitate-capitate 

 projections on the basal side. 

 Luzon. 



(47) S. isiiuilis, Huhn, Forschr. Gaz., IV, Bot. ; — var. brovi- 

 aristata, Hieron., MS. in Herb. Berol. 



Shoots ascending, decompound, to 3 — 4-pinnate (subdichotomous), 

 deltoid in outline, to 50 cm. long and 25 cm. broad, the stem stramineous, 

 compressed, 2-sulcate down the face, convex on the back, the main rachis 

 subflexuose, the partial rachises flexuose, to 10 mm. broad including the 

 lateral leaves; ultimate branchlets 5 — 7 mm. broad. Leaves hetero- 



