SPECIES AND VARIETIES OF BRITISH FERNS. 
65 
Ophioglossace^. 
Genus 18. BOTRYCHIUMj Linnwus. 
1. B. Liinaria, Linnwus. — The only British species. Plate 
XVIII. fig. 2. 
Genus 19. OPHIOGLOSSUM, Linnwus. 
1. 0. vulgatum, — Fronds ovate. Plate XVIII. 
fig. S. 
2. Limiwus. — Fronds very small, linear- 
lanceolate, obtuse, fleshy. Plate XXIL fig. 3. 
II. CLUB-MOSSES, or LYCOPODIACEiE. 
Genus 20. LYCOPODIUM, Linnwus^ 
1. L. Selago, Linnwus. — Leaves in eight rows, imbricated 
on the usually erect stems ; fructifications in the axils 
of leaves, not spiked. Plate XX. fig. 5. 
2. L. annotinum, Linnwus. — Leaves indistinctly five- 
rowed, linear-lanceolate, patent ; spikes solitary, ses- 
sile. 
3. L. clavatum, Linnwus. — Leaves scattered, incurved, 
hair-pointed ; spikes two or more on a stalk. Plate 
XX. %. 6. 
