132 103. SELAGINELLA. A'. MONOSTELIOAE. a^ CAULESCENTES. 



very minutely denticulate, more cordate and hamato-incurvate on the 

 outer side at the base; of the branchlets similar, the largest I'A — 2 mm. 

 long, entire, not incurved at the base, -the cusp Va as long as the blade. 

 Spikes solitary, square, to 2 cm. long, I'A — 2 mm. diam. ; sporophylla 

 ovate, acute, keeled, minutely denticulate, the largest IVs — VU mm. long; 

 macrospores vsfhitish, irregularly reticulate-rugulose, the apical ribs encircled 

 by a ring-shaped crest; microspores whitish to yellow, provided with 

 bacilliform or stipitate-capitate projections on the basal side. 

 Borneo. 



(82) S. frondosu. JTafb., Mons., I, 117; S. flabellata, Bk. (not 

 Spring), Journ. of Bot., XVIII, 217 ; — var. borneensis, Hieron., Engl. Bot. 

 Jahrb., XLIV, 511; — var. ciliata, v. A. v. R., Bull. Btz., 1914, XVI, 

 48; — var. splendida, v. A. v. R., Bull. Btz., 1912, VII, 31. 



Shoots erect, 35 — 50 cm. long, the lower part simple, TA— 4 mm. 

 thick, yellowish-grey when dry, subterete or rather obtusely quadrangular, 

 grooved when dry, the upper part compound, oblong, roundish or trans- 

 versely oblong, to 35 cm. broad; pinnae 8—16 on a side, contiguous, the 

 lowest the largest, 3-pinnate, to 25 cm. long, to 20 cm. broad, the higher 

 simply pinnate, the highest simple or forked; ultimate branchlets crowded, 

 to 1 cm. or more long, 2 'A— 3 mm. broad including the lateral leaves. 

 Leaves of the stipe isomorphous, erected, adpressed, triangular or oblong, 

 2V2 — 4 mm. long, acute, the base rotundate-truncate or semi cordate, entire 

 to ciliolate; leaves of the branched part heteromorphous; leaves of the lower 

 plane dark-bright-green above, green or glaucescent beneath, approximate, 

 more or less ascending; of the main rachis oblong, subfalcate, slightly 

 inequilateral, subobtuse, obliquely truncate-rotundate to cordate and more 

 or less ciliolate on both sides at the base, entire, but minutely denticulate 

 on the upper side towards the base, the largest leaves 5—6 mm. long 

 and half as broad ; of the branchlets subsimilar, 2—4 mm. long, relatively 

 narrower, contiguous or somewhat imbricated, rotundate-subcordate to 

 -subcuneate at the base, vdth the lower base provided with 0—4 short 

 ciliae ; leaves of the upper plane erected, adpressed ; of the main rachis 

 to 4 mm. long, oblong, much acuminated or shortly cuspidate, more or 

 less keeled, entire or obsoletely denticulate, with the base more or less 

 cordate, often sparingly ciliolate, produced and mostly distinctly hamato- 

 incurvate on the outer side ; of the ultimate branchlets smaller, shortly 

 cuspidate, entire or ciliolate at the base, the inner base rotundate or 



