103. SELAGINELLA. A'. MONOSTELICAE. a<. ASCENDENTES. 119 



mm. broad ; those of the main rachis similar, to 4 mm. long, rather longer 

 aristate, often subentire; of the ultimate branchlets similar, smaller, to 



2 mm. long, with the cusp as long as the blade or longer, the outer base 

 auriculate-cordate. Spikes solitary, 5 — 7 mm. long, IV2 — 2 mm. diam. ; 

 sporophylla deltoid-ovate, long-aristate, pellucid-margined, sparingly piloso- 

 denticulate, keeled, the largest 2 mm. long; macrospores pale-yellow-brown, 

 verruculose to rugulose; microspores orange or yellowish, the basal side 

 provided with scattered, sessile, capitate projections. 



Leyte (Philippines). 



(68) S. obesa. J»fc., Fern AIL, 97. 



Shoots erect, up to 30 cm. long, the lower part simple, stipitiform, 

 stramineous, the upper part decompound, deltoid; branches close, lanceolate, 

 copiously pinnate with short, sparingly compound, ascending pinnulae; 

 ultimate branchlets 6 — 12 mm. long, 3 mm. broad including the lateral 

 leaves. Leaves of the lower plane contiguous and patent on the branches, 

 ascending on the branchlets, oblique-ovate, 2 — 3 'A mm. long, very broad 

 at the base which is much dilated on the upper side, broadly rounded, 

 obscurely ciliated and much imbricated over the rachis, the margins 

 revolute above the base; leaves of the upper plane Y2 as long, ovate- 

 lanceolate, with a distinct cusp. Spikes short, square, VU mm. diam.; 

 sporophylla ovate-lanceolate, strongly keeled. 



Plants occurring in the Buitenzorg Herbarium agree very well with 

 Baker's diagnosis. They have the stem subterete, more or less irregularly 

 grooved when dry, IV2 — 3 mm. thick at the base, the pinnae lanceolate 

 to linear, 10 — 20 cm. long and 2 — 3 cm. broad when fully developed, 

 the pinnulae close, ascending, the lower and central pinnulae pinnate 

 with 1 — 2 branchlets on each side or the central forked, the higher 

 simple or forked, the ultimate branchlets to 5 mm. broad, the leaves 

 dimorphous, the leaves of the lower plane blunt, remote on the stem, 

 subcontiguous to imbricate on the branchlets, those of the stem and 

 lower part of the main rachis obliquely deltoid-cordate, minutely sub- 

 appresso-pilose on the upper surface, with the upper edge minutely 

 denticulate in the lower half, the lower edge entire except at the very 

 base, both sides pellucid-margined, the largest leaves 5 mm. long and to 



3 mm. broad at the base, those of the branchlets subhorizontal or 

 ascending, obhquely subfalcate-oblong, 2— 2 'A , mm. long, 1 mm. broad, 

 naked, with the upper base broadly rotundate-cuneate, rotundate or sub- 



