103. SELAGINELLA. A 1 . MONOSTELICAE. b 3 . SUBEROSAE. 187 



a side; ultimate branchlets 1 IVa mm. broad. Leaves heteromorphous, 

 glaucous-green, remote on both stem and branches; lateral leaves ascending; 

 of the stem unequal-sided, oblique-ovate, blunt or subacute, rounded on 

 the upper side and rather narrowly subcordate on the lower side at the 

 base, with the upper edge entire or sparingly denticulate towards the 

 base, the lower side entire, or sparingly and minutely denticulate towards 

 the apex, the largest leaves I 1 4 IVa mm. long and 1 mm. broad; of the 

 ultimate branchlets smaller, rather rotundate-cuneate on the lower side 

 at the base; intermedial leaves nearly equal-sided, ovate, long-acuminate, 

 hardly aristate, somewhat obliquely rounded at the base, with the inner 

 edge sparingly and minutely denticulate and the outer edge entire, or 

 minutely denticulate towards the apex, the largest leaves 1'A mm. long 

 and hardly more than Va mm. broad. Spikes solitary, Va T/2 cm. long, 

 IVa 2 mm. broad, not rarely flagellate-proliferous; sporophylla of the 

 upper plane very unequal-sided, oblique-ovate, acute, keeled, minutely 

 serrulate on both sides; of the lower plane equal-sided, deltoid, aristate- 

 acuminate, somewhat keeled, sparingly minutely serrulate; macrospores 

 whitish to yellow, smooth or minutely papilloso-tuberculate on the basal 

 side; microspores red or yellow, smooth. 

 Borneo. 



(155) S. cerehriformis, . A. r. K., Bull. Btz., 1912, VII, 32. 



Shoots probably erect, more than 8 cm. long, pinnate, the stem IVa 

 mm. thick, stramineous and unequally grooved down the face and sides 

 when dry; pinnae remote, 3Va cm. long, between 2-pinnate and 2 3 times 

 forked; ultimate branchlets 7Va 15 mm. long, 4 5 mm. broad including the 

 lateral leaves. Leaves heteromorphous; leaves of the 'lower plane spreading 

 or horizontal; those of the ultimate branchlets rather remote, rhomboidal- 

 oblong, the largest 2Vz mm. long, 1 mm. broad, somewhat falcate, acute, 

 obliquely cuneate or rotundate-cuneate at the base, the lower edge entire, 

 the upper edge sparingly ciliolate-denticulate, or entire towards the apex; 

 those of the main rachis similar but more distant, larger, to 5 mm. long, 

 more broadly rounded on the upper side at the base ; leaves of the upper 

 plane erect, adpressed; those of the ultimate branchlets imbricated, 

 parallel, nearly straight, obovate-oblong, the largest 2 mm. long, nearly 

 equally cuneate on both sides at the base, the apex rounded and abruptly 

 cuspidate, the cusp more than Va as long as the blade, the edges ciliolate- 

 denticulate; those of the main rachis similar, but distant, larger, more 



