103. SELAGINELLA. A*. MONOSTELICAE. a^ CAULESCENTES. 1 31 



those of the main rachis 3 mm. long, 2 mm. broad, denticulate on the 

 upper side; those of the secondary rachises broadly oblong, bluntish, 

 minutely denticulate on the upper side, entire on the lower side except 

 at the apex; of the branchlets ovate-oblong, subacute, straight, rather 

 subfalcate, minutely denticulate on the upper side in the lower half, Vh mm. 

 long, Vi mm. broad; leaves of the upper plane ovate, long-aristate-cuspidate, 

 cordate-auriculate on the outer side at the base, rotund ate-cuneate on the 

 inner side at the base, the cusp V2 — Vs as long as the blade; those of the 

 main rachis piloso-denticulate towards at the apex, the largest 3 mm, long, 

 1 mm. broad ; those of the branchlets smaller, more or less pellucid-margined 

 towards the apex. Spikes square, to 5 mm. long, 2 — 2Vi mm. diam. ; 

 sporophylla nearly isomorphous, equal-sided, ovate, aristate-cuspidate, 

 hardly auricled at the base, densely piloso-denticulate, the ventral ones 

 somewhat larger, the largest to I'A mm. long, 1 mm. broad; macrospores 

 yellowish-white, finely and irregularly reticulate-rugulose on the basal 

 half; microspores provided with baculiform or capitate projections on the 

 basal side. 

 Luzon. 



(81) S. parvifrons, r. A. r. «., Bull. Btz., 1913, XI, 84. 



Shoots erect from a decumbent base, 20 cm. or more high, the lower 

 (shorter) part simple, J mm. thick, irregularly angular and grooved when 

 dry, the upper (longer) part branched, lanceolate-ovate in outline, 15 cm. 

 or more long; pinnae suberect, the higher simple or forked, the lower 

 pinnate, to 10 cm. long; pinnulae suberect, simple or forked; ultimate 

 branchlets VU — 2V2 cm. long, 3 'A — 4V2 mm. broad including the lateral 

 leaves. Leaves of the stipe subisomorphous, rather remote, erect, oblong, 

 3 mm. long, shortly cuspidate-acuminate, entire, obliquely rotundate- 

 subcordate at the base; leaves of the branched portion heteromorphous ; 

 leaves of the lower plane more or less ascending; of the main rachis 

 approximate, falcate-oblong, 4V2 — 5 mm. long, V2 as broad, bluntish or 

 subacute, unequal-sided, the upper side rounded, minutely denticulate in 

 the lower half, cuneate at the base, the lower side nearly straight, entire, 

 narrowly rotundate-truncate at the base; of the branchlets similar but 

 less unequal-sided, to 4 mm. long, to 2 mm. broad, close or imbricate, 

 spuriously 2-nerved, indistinctly pellucid-margined on the upper side in 

 the lower half; leaves of the upper plane erect; of the main rachis similar 

 to those of the stipe, close, hardly longer, distinctly broader, subentire or 



