80 103. SELAGINELLA. A'. MONOSTELICAE. a. RADICANTES. 



interrupted, and the upper side subentire towards the less blunt apex 

 and ciliolate-denticulate towards the base, the leaves of the upper plane 

 with the cusp longer, 3 U as long as the blade, the sporophylla elongate- 

 ovate, the microspores provided with needle-like or bacilliform projections 

 which are whether not thickened at the apex. 

 Sumatra. 



(24) S. sarawakensis, Jf?rm., Hedwi., L', 13. 



Shoots trailing, repeatedly dichotomous, the rachis of the primary 

 branches 10 mm. broad including the lateral leaves, the ultimate branchlets 

 5 mm. broad. Lateral leaves rather close; of the stem horizontal or 

 nearly so, unequal-sided, obliquely falcate-oblong, bluntish or subacute, 

 the upper side papilloso-denticulate, ciliolate at or towards the broadly 

 rounded base, the lower side obsoletely denticulate towards the apex, 

 ciliolate at the truncate-rotundate base, the midrib thickened towards the 

 apex, the largest leaves 5 5Y mm. long and 2 mm. broad; of the 

 branchlets similar, subspreading, more rotundate-cuneate at the minutely 

 denticulate lower base, the largest leaves 3 3V* mm. long; leaves of the 

 upper plane obliquely subfalcate-ovate, unequal-sided, cuspidate, minutely 

 ciliolate-denticulate on both sides ; of the stem 3 mm. long, with the inner 

 base narrowly rotundate-cordate, the outer base more broadly so and 

 more produced, the cusp Vt as long as the blade; of the branchlets 

 similar but smaller, more rounded on the inner side at the base. Spikes 

 solitary or double, 1 cm. more or less long, VU 1 3 A mm. diam. ; 

 sporophylla subisomorphous, equal-sided, deltoid, shortly aristate-acuminate, 

 keeled, minutely denticulate, the ventral ones the largest, IVz mm. long; 

 macrospores mostly 2 (never 4) in a macrosporangium, white, rugulose 

 with flexuose, branched or reticulate rumples, the apex without radiating 

 ribs, encircled by a lacerate-denticulate crown-like crest ; microspores pale- 

 yellow, sparingly provided with capitate projections on the basal side. 



Borneo. 



(25) S. auriculata, Spring, Mon., II, 108; Bk., Fern All., 48; 

 S. plumosa, Pr., Abh. Boehm. Ges., Ill, 583. 



Shoots trailing, 15 cm. long, the stem 2-sulcate down the face, 

 copiously pinnately branched; branches approximate, little compound. 

 Leaves of the lower plane close on both stem and branches, oblong- 

 lanceolate, 3 4 mm. long and 1 2 mm. broad, horizontal or rather 

 ascending, dark above, pale beneath, bluntish, spuriously veined, moderately 



