SPECIES AND VAKIETIES OF BRITISH FERNS. 65 



OPHIOGLOSSACEiE. 



Genus 18. BOTRYCHWJM, Linnccus. 



1. B. Lunaria, Linnceus. — The only British species. Plate 

 XVI 11. %. 2. 



Genus 19. OPHIOGLOSSUM, Linnccus. 



1. 0. vulgatum, ZwHa?W5. — Fronds ovate. Plate XVI i I. 



fig. 3. 



2. 0. lusitanicum, X»2;?(5PW5. — Fronds very small, linear- 



lanceolate, obtuse, fleshy. Plate XXII, fig. 3. 



II. CLUB-MOSSES, or LYCOPODIACE^. 



Genus 20. LYCOPODIUM, Lmnceus. 



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. elavatum, Linnccus. — Leaves scattered, incurved, 



hair-pointed ; spikes two or more on a stalk. Plate 



XX. fig. 6'. 



3P 



