Lycopodiace^e of Guiana and their Allies. 43 
attached obliquely, the outer rounded side being much deeper than the 
inner, tbe two series close and slightly overlapping in the lines, rather 
keeled toward the freely cuspidate point. Spikes J-i in. 1., 4-gonal 
often 2 to a final branch, or forked ; bra6ts densely imbricated, sharply 
keeled and pointed. 
SCHOMBURGK n. 982. A large species most like 
S. epirhizos and S. affinis in its flat spreading parts, the 
leaves of which lap one over the other on the under sur- 
face and spread horizontally. The intermediate leaves are 
very unequal sided, run direft with the rachis, and are 
attached on the narrow or inner side of the base. The 
long slender white roots from the joints are numerous. 
Both above and below the rachises are quite concealed 
by the foliage. Gathered by Le Prieur as well as by 
SCHOMBURGK. 
General distribution — Guiana and Brazil. 
10. Selaginella roraimense, Baker, in Journ. Pro. Lin. Soc. — 
Fronds sub-ere6l or more decumbent, rooting only at and near the base, 
bi-tri- pinnate, leafy to the base, 3.5 in. 1. i-2i in. br. Branches spread- 
ing laterally or converging forward, 7.\ li. w. over the leaves, the major 
series of which are close or with as much as their own width between, 
nearly horizontal, acute, the base unequally sub-cordate, the upperside 
auricled, overlapping the rachis, and faintly spinulose, \-\\ li. 1. \ li. w. 
Minor leaves \ li. 1. equilateral, cordate, the point acuminate, but not 
cuspidate, the margins faintly spinulose. Spikes square, \-i\ in. 1., 
often copious. Bra6ts keeled. 
Roraima, IM Thurn, n. 122. Gathered near the foot of 
the slope ; most abundant on the banks, which it covers, 
of the upper part of Macouria River ; Jenman, n. 2324. 
A very near ally of S. radiata, for which without close 
comparison it might be mistaken, but a stiffer and more 
ere£t species. The range in altitude of the two localities 
above mentioned is the widest known of any of the local 
species. 
General distribution — Endemic. 
F2 
