470 OXLIII. FILICES. 
SusorpDER 7. Ophioglossez. 
Vernation erect. Capsules deeply 2-valved, without any 
ring, opening down the side nearly to the base. 
37. OPHIOGLOSSUM, Linn. 
Capsules sessile, arranged in 2 rows, so as to form a dense 
spike.—Pappe and Rawson, p. 47; Hook. and Baker, Syn. Fil. 
p- 444. 
3 Cape species, 1 a form of the cosmopolitan O. vulgatum, and 1, which 
is confined to the Cape and very rare, forming the sect. Rhizoglossum, Presl, 
characterized by haying the barren and fertile fronds distinct. 
Orver CXLIV. LYCOPODIACEZ, 
Capsules sessile in the axils of the leaves, deeply 2- or 3- 
valved, 1-3-celled, without, a ring, uniform or of 2 kinds; when 
of 2 kinds, 1 is larger than the other, and contains 3 or 4 
large spores (macrospores) ; the smaller capsules, or all of 
them if of one kind only, containing a large mass of minute, 
dust-like spores (microspores).—Leaves uniform and imbri- 
eated all round the stem, or of 2 kinds, arranged in fours, the 
smaller pair adpressed to the stem, and the larger spreading 
from it in a single plane. Capsules dispersed amongst the 
leaves down the stem or confined to a few of the upper leaves, 
which are then often different from the others and form a sort 
of cone. 
1. LYCOPODIUM, Linn. 
Capsules and spores all of one kind, the former 2-valved 
and 1-celled; the leaves usually equal and spreading uni- 
formly.—Pappe and Rawson (in part), p. 48. 
Species 6 ; the leaves in all spreading uniformly, 
2. SELAGINELLA, Spring. 
Capsules and spores of 2 kinds, the former 2-valved and 1- 
celled, aggregated in terminal heads. Leaves usually of two 
forms and sizes, the larger pairs spreading distichously —Ly- 
copodium, Pappe and Rawson (in part). 
4 Cape species, in 2 of which the leaves spread uniformly. 
3. PSILOTUM, Swartz. 
Capsules 3-celled, 3-valved. Leaves minute, rigid and very 
much scattered.—Pappe and Rawson, p. 50. 
A single, widely-diffused, tropical species (P. triquetrum), reaches Natal. 
