96 103. SELAGINELLA. A 1 . MONOSTELICAE. a 4 . ASCENDENTES. 



the lower half, keeled, the largest IVz mm. long; macrospores whitish or 

 yellowish, rugulose with flexuose, branched or hardly reticulated rumples 

 on the basal side; microspores orange or yellowish, minutely rugulose 

 and sparingly capitato- or conico-verruculose on the basal side. 



(38) 8. halconeiisis, iiieron., Fed., Rep., X, 108. 



Shoots 70 cm. or more long, the lower part simple, stipitiform, 

 yellowish or ochraceous, compresso-quadrangular, to 3Vz mm. thick, the 

 upper part sub-5-pinnate, ovate in outline. Leaves heteromorphous; lateral 

 leaves of the stipe obliquely falcate-ovate, the lowest suberect, the following 

 spreading, very unequal-sided, shortly acuminate, with the upper side 

 piloso-denticulate, gradually ciliate towards the rotundate-cordate base, 

 the lower side entire, or obsoletely denticulate towards the apex, sparingly 

 ciliate at the subtruncate-auriculate base, the largest leaves 4 mm. long 

 and 2Vz mm. broad; of the main rachis glaucous-green, obliquely subfalcate- 

 ovate, unequal-sided, subacute, indistinctly spuriously veined, with the 

 upper side sparingly denticulate, hardly pellucid-margined, subentire or 

 ciliate towards the rotundate-cuneate base, the lower side entire, sparingly 

 ciliate at the truncate-rotundate base, the largest leaves 6 mm. long and 

 3 mm. broad ; of the ultimate branchlets similar but smaller, subcontiguous, 

 rather falcate oblong, entire, with the upper side cuneate in the lower 

 part, very narrowly truncate-cordate at the base, the lower side truncate- 

 rotundate at the base, the largest leaves 2 4 mm. long and *U 1'A mm. 

 broad ; intermedial leaves erect ; of the stipe broadly falcate-ovate, shortly 

 aristate-acuminate, inequilateral, with the outer side subentire, or ciliate 

 at the subtruncate-cordate produced base, the inner side piloso-denticulate 

 towards the apex and gradually ciliate towards the truncate or subcordate 

 base, the largest leaves 4 mm. long and V as broad; of the main rachis 

 subsimilar to those of the stipe, with the outer base subincurvate-cordate ; 

 of the branchlets similar to those of the main rachis but smaller, to 1Y 

 mm. long and relatively narrower, with the outer base rotundate-cordate, 

 the inner base narrowed. Spikes solitary, 58 mm. long, 1V 4 mm. 

 diam. ; sporophylla subisomorphous, deltoid-ovate, shortly aristate- 

 acuminate, minutely piloso-denticulate, hardly pellucid-margined, keeled, 

 the largest 1V2 mm. long; macrospores dark or yellow-brown, provided 

 with flexuose or branched, hardly connected rumples on the basal side, 

 the apical ribs encircled by a nearly wing-shaped equatorial crest; micro- 



