534 101. MAKSILEACE^. — 102. LYCOPODIACE^. 
Ovc5er CI. MARSILEACE^. 
Creeping plants with alternate erect leaves, circinate in bud. 
Fructification consisting of globular coriaceous axillary bodies 
M'ith 3 or 4 cells and containing sacs including either other 
bodies that germinate or loose granules. 
1. PiLlTLARiA. Capsules solitary, nearly sessile^, globose, 
coriaceous, 2 — 4-celled. Cells containing bodies of two 
kinds — granules, and membranes containing minute grains. 
1. Pilxila'eia Linn. Pill wort. 
1. F. glohulif'era (L.) ; ped. erect, caps. 4-celled. — E. B. 521. 
H. V. 57. ^Y. 393. — Ehizome slender, creeping, producing 
leaves and roots at regular intervals. L. very slender, erect. 
Caps, pubescent, slightly stalked, axillary, nearly spherical, 
hairy. — Margins of ponds and lakes. P. VI. VII. E. S. I. 
Order Oil. LYCOPODIACEJ^:. 
Leafy plants with simple imbricate leaves, or stemless with 
erect subulate leaves. Fructification of axillary sessile 
capsules with 2 or 3 valves and no ring, including minute 
powdery matter or spores. 
* Capsules not openin;/. — Leaves radical. 
1. IsoETES. Caps, in pouches formed of the swollen bases 
of the leaves. Spores of two kinds attached to filiform 
receptacles ; those of the outer leaves large, of the inner 
very small. 
** Capsules bursting. — With leafy stems. 
2. Lycopodium. Caps, of one kind, 1-celled, containing 
many minute spores. 
3. Selaginella. Caps, of two kinds, small containing many 
minute spores, or larger and containing about 4 large spores. 
