103. SELAGINELLA. A'. MONOSTELICAE. a'. RADICANTES. 81 



firm in texture, ciliated on both sides at the base, a little dilated-auricled 

 and slightly imbricated over the rachis on the upper side at the base, 

 with a distinct midrib, the higher nearly equal-sided; leaves of the upper 

 plane roundish-ovate, 1 — 2 mm. long, distinctly cuspidate, ciliate on both 

 sides at the base which is obliquely cordate and much produced on the 

 outer side. Spikes IV2 — 2V2 cm. long, 1 V« mm. diam. ; sporophylla crowded, 

 ovate, acuminate, entire, keeled; macrospores verruculose- or reticulate- 

 rugulose; microspores capitate-verruculose on the basal side. — A form 

 reported from Celebes (Christ, Fil. Saras., II, 218) has the branches mostly 

 simple, to 10 cm. long, with the lateral leaves 6 — 7 mm. long, and the 

 leaves of the upper plane 2 mm. each way. 

 Philippines, Celebes (?). 



(26) Si. longarislata, Uieron., Hedwi., L, 16. 



Shoots decumbent, often repeatedly forked in the lower part, pinnately 

 branched in the upper part, the rachises of the primary branches 10 mm. 

 broad including the lateral leaves, the ultimate branchlets 5 — 6 mm. broad. 

 Leaves of the lower plane spreading or subhorizontal, spaced on the main 

 stem, rather contiguous on the branchlets, unequal-sided, obliquely falcate- 

 oblong, broadest on the upper side; of the main stem the largest, to 

 4 — 5 mm. long and IV2 mm. broad, subacute, very minutely serrulate on 

 both sides towards the apex, ciliate on both sides at the base, the ciliae 

 of the upper base passing gradually into the serratures of the apex or 

 the upper edge entire at the centre, those of the lower base few, sometimes 

 wanting, the upper base broadly rounded or subcordate, the lower base 

 narrowly truncate ; of the branchlets to 3 mm. long, with the under 

 surface striated with 2 lines resembling spurious veins, the upper base 

 rotundate-cuneate ; leaves of the upper plane unequal-sided, long-cuspidate, 

 the largest 3 mm. long, nearly keeled, both sides denticulate towards 

 the apex, rather ciliate at or towards the base, the outer base cordate, 

 the inner base shortly cordate or rotundate-cuneate, the cusp Vs as long 

 as the blade. Spikes nearly square, 4 — 6 mm. long, 2 mm. diam. ; 

 sporophylla deltoid, equal-sided, acute, narrowly pellucid-margined, piloso- 

 denticulate, the ventral ones somewhat larger than the others, to VU mm. 

 long; macrospores 1 — 2 in a macrosporangium, white, rugulose with 

 flexuose or reticulate ridges, the apex without radiating ribs, encircled 

 by a ring-shaped ridge or crest; microspores probably wanting. 



Borneo, Billiton, Banca, Malacca. 



Fern Allies. 6 



