103. SELAGINELLA. A'. MONOSTEUCAE. b'. INTERTEXTAE. 165 



ultimate branchlets to 5 mm. long, IVs — 2 mm. broad including the 

 lateral leaves. Leaves heteromorphous ; leaves of the lower plane rather 

 remote on the stem, more or less contiguous on the branchlets; of the 

 stem horizontal or spreading, very unequal-sided, triangular-ovate, the 

 largest 2Va ram. long, VU mm. broad, acute, entire or obsoletely den- 

 ticulate on both sides, the upper side ciliolate towards the very broadly 

 rounded or subcordate base, the lower side rather cuneate at the base, 

 the upper surface minutely papilloso-pilose ; of the branchlets ascending, 

 smaller, I'A mm. long, less unequal-sided, relatively narrow, subacute, 

 . obliquely rotundate-cuneate at the base ; leaves of the upper plane erect ; 

 of the stem subcontiguous, ovate, equal-sided, 2 mm. long, keeled, 

 cuspidate-acuminate, the cusp relatively long, the outer side entire or 

 obsoletely denticulate, the inner side piloso-denticulate, the base rounded, 

 not or hardly produced on the outer side; of the branchlets similar but 

 smaller. Spikes solitary or double, 'A — IV2 cm. long, 2V2 mm. broad; 

 sporophylla of the upper plane close, subspreading, lanceolate-oblong, I'A 

 mm. long, acute, keeled, with the upper edge sparingly denticulate to 

 ciliolate in the lower part, as is the keel; those of the lower plane 

 erecto-patent or suborect, ovate, long-acuminate, remotely ciUate except 

 at the apex; macrospores yellowish-white, deciduously verruculose, at 



length smooth; microspores 



Borneo. 



(124) S. brevipiniia, r. A. r. J»., Bull. Btz., 1911, I, 23. 



Shoots decumbent, very wide-trailing, to more than 40 cm. long, 

 repeatedly forked, caespitose, the secondary shoots pinnate, the stem 

 slender, stramineous, V4 mm. thick, compresso-terete, smooth or somewhat 

 grooved, 3'/^ mm. broad including the lateral leaves; pinnae distant, 

 erecto-patent, short, 'm — IV2 cm. long, simple, forked, or pinnate with a 

 single pinnula on each side; pinnulae very short, the largest at best V* cm. 

 long, 2'li mm. broad including the lateral leaves. Leaves heteromorphous ; 

 leaves of the lower plane spreading and spaced on the stem, ascending and 

 imbricated on the branchlets; of the stem broadly ovate, 2 — 2 '/a mm. 

 long, Vl-i mm. broad, very unoqual-sidod, rather acute, naked or sparingly 

 papilloso-piloso above, the upper edge obsoletely denticulate towards the 

 apex, denticulate at the centre, gradually ciliate or ciliolate at the base, 

 the lower edge obsoletely denticulate towards the apex, entire at the 

 centre, denticulate at the base, the upper base much dilated, truncate- 



