EXPLANATION OF THE PLATES. 275 



Plate II. — Reproduction in the other Cryptogamic Orders. 



Fig. I. — One of the valves of the globule of Chara fragilis 

 (from Berkeley). 6, cells forming the valve, radiating from the 

 summit of the supporting cell or pedicle, a ; c, bases of other 

 pedicles springing from the summit of the central stalk of the 

 globule ; d, one of the tuft of articulated tubules, which spring 

 from the same point, each of the articulations developing a bi- 

 cilated spermatic filament. — (p. 39). 



Fig. 2. — Section of a part of the frond of Sticta pulmonaria 

 (after Tulasne), showing spermagonia a, b — the latter empty — 

 and an apothecium c. 



Fig. 3. — Section of part of an apothecium oi Lecidea luguhris, 

 (after Lindsay,) showing immature asci at a ; and asci with- 

 eight mature spores at h; sterile filaments or paraphyses at c; the 

 subjacent layer of gonidia at d; and the hypothallus or stratum 

 of mycelial filaments at e — (p. 48). 



Fig. 4. — Germination of a Moss (Funaria hygrometrica. ) a 

 protonemic filaments, the first outgrowths from the spore ; c, a 

 nascent moss-bud ; d, another bud which has begun to develope 

 a leafy axis, and to emit below radical filaments b. — (from 

 Schimper). 



Fig. 5. — Perpendicular section of the monoecious fructifica- 

 tion of a Moss (Phascum cuspidatum from Hof meister), showing 

 antheridia at a, and archegonia at b, both intermixed with ar- 

 ticulated filaments or paraphyses — (p. 50). 



Fig. 6. — Antheridium of a Moss, emitting the cellules which 

 contain the motile filaments. 



Fig. 7. — The Antherozoid of a Moss coiled up in its cellule. 

 It is a long simple filament, with one extremity enlarged, and 

 the other tapering away to a fine point. 



jTjg^ 8. — An antherozoid of Pellia (from Thuret). 



jTjg^ 9, — Archegonium of Jungermannia bivaricata (from Hof- 

 meister) showing the central corpuscule and the styloid canal 

 formed of four columns of cells. At its outer extremity are re- 

 presented antherozoids, free and in cellules. 



Yi(r, 10. — Capsule of P olytriclmm (ironi Balfour), showing the 

 veil, which is derived from the upper wall of the archegonium, 



o 2 



