103. SELAGINELLA. A. MONOSTELICAE. a. ASCENDENTES. 117 



rather cordate. Spikes square, often double, under 1 cm. long, IVa 2 

 mm. diam. ; sporophylla deltoid-ovate, acute, pellucid-margined, minutely 

 denticulate, keeled, to 1 mm. long; macrospores 2 in a macrosporangium, 

 white, irregularly rugulose with simple, branched or connected rumples, 

 the apex flattened, without radiating ribs, encircled by a ring-shaped 

 crest; microspores probably wanting. 

 Celebes. 



(65) S. s ul> serpent in a. . A. e. JR., Bull. Btz., 1911, I, 17. 

 Shoots ascending from a short-creeping base, 15 35 cm. long, often 



one or more times forked above the base, the secondary shoots branched 

 with the branching between pinnate and dichotomous, erect or erecto- 

 patent, very regularly foliate, as are the stem and main rachises, straight, 

 curved or serpentino-flexuose, simple or little compound, the ultimate 

 branchlets 2 10 cm. long, 5 8 mm. broad including the lateral leaves. 

 Leaves heteromorphous ; those of the lower plane crowded on both stem 

 and branches, rather imbricate, subascending or rather spreading, sub- 

 falcate-oblong, 3 4 mm. long, to 2 mm. broad, rounded or rotundate- 

 cuneate on the upper side at the base, more or less abruptly truncate- 

 rotundate to cuneate on the lower side at the base, with the upper edge 

 distinctly piloso-denticulate but more obsoletely so towards the apex, 

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

 piloso-denticulate at the very base, the under surface not spuriously 

 nerved, the midrib narrowed towards *the apex; leaves of the upper plane 

 erect, adpressed, imbricated, obliquely obovate, distinctly aristate, piloso- 

 denticulate, the inner base truncate- or rotundate-cuneato, the outer base 

 produced, cordate or subcordate, the largest leaves 2 mm. long. Spikes 

 solitary or 2 3-nate, square or nearly so, 550 mm. long, 1 8 A mm. 

 diam.; macrospores 2 in a macrosporangium, provided with short or 

 elongated, straight or flexuose, branched or reticulated rumples on the 

 basal side, the apical side rather flattened, without radiating ribs, encircled 

 by a ring-shaped ridge; microspores probably wanting. 

 Sumbawa (?). 



(66) S. sambasensis, iiteron., Hedwi., L, 9. 



Shoots ascending from a short-creeping base, often one or more times 

 forked at the base, pinnately branched in the upper part, the primary 

 rachises to 9 mm. broad including the lateral leaves. Leaves of the lower 

 plane horizontal or nearly so, obliquely falcate-oblong, unequal-sided, 



