Lycopodiace/e of Guiana and their Allies. 43 
sules. They number about a hundred species, which are 
spread over the torrid and warmer regions of the globe, but 
most concentrated in the equatorial belt. Some of the spe- 
cies range widely in both the old and new worlds. They 
are divided in their habits of growth into two divisions — 
terrestrial and epiphytal. The former in Guiana grow in 
moist ground generally, either open to the direct sunlight 
or in forest shade. Two or three species, however, ap- 
pear to prefer well-drained ground. Both are erect, or 
prostrate in growth, and more or less gregarious. Of the 
epiphytal, some are strictly pendent, others have a ten- 
dency to be pendent with the gradual lengthening of 
their weak flexible branches, while still maintaining ver- 
tical growth. These generally grow in forests on the 
branches of trees. 
§ Fructification in dense catkin-like terminal spikes. --Species 1-4. 
f Spikes on long slender stems. — Species 1-2. 
* Branches flattened, with a distinct upper and under side. — Species 1. 
1. Lycopodium Carolinianum, Lin. — Fl. Brasil p. 115. L. repens, Sw 
L. affine, Bory. — Stems prostrate, rooting at intervals, extending and 
shortly branched. Leaves of two kinds ; lateral larger and spreading 
horizontally in a single series on each side, the intermediate in a line with 
the rachis, to which they are appressed, 3-serial, linear-lanceolate, and 
much smaller, the former 2-2^ li. 1., £-f li. b., linear-oblong, decurrent 
on the rachis at the base, curved on the upper margin. Spikes 1-2^ in 
I., on slender distant simple erect stems 3-15 in. 1. which are very laxly 
clothed with small subulate leaves i-i^ li. 1. Scales of spikes ovate- 
tapering to a spinulose point, the margins often faintly denticulate. 
Appun, n. 1027, Cako Creek. PARKER, Sand Hills. 
JENMAN, n. 374, Corentyn River; n. 4174, Kaieteur 
Savannah. Terrestrial in wet swampy ground, on the 
surface of which the stems extend, the slender terete 
fertile ones being thrown up stiffly erect at right angles. 
The minute leaves of the fertile stems are arranged 
F3 
