208 BOTANICAL GAZETTE a 
Fic. 5. Rhizoid (7) with emmy branches (#) which have been pro- 
duced after exposure to light. X 130. 
Fic. 6, Rhizoid (r) with protonemal branches (A) showing the origin of a 
bud from a cell of the main rhizoid axis, and homologous with the lateral 
protonemal branches. X 220. 
Fic. 7. Same as 6, only the bud formation has occurred from one of the 
protonemal branches direct. x 220. 
funaria hygrometrica, 
Fic. 8. Protonema and bud grown from the receptacle. X 130, 
FiG. 9. Portion of a protonema as grown from a leaf in the dark. X 1 30. 
Fic. 10, Paraphysis, showing the origin of a protonema from the basal 
cell, x 54. : 
Fig. 11. Proximal portion of the same on a larger scale. X 130. 
Fig. 12. New shoot, rhizoids, and protonemata growing from a defoliated 
stem. 
Bryum capillare. 
Fic. 13. Several cells from the leaf base showing the origin of proto- 
nemata, with the formation of a bud. x 1 30. 
Fé. 14. Protonema and bud grown from the leaf. X 130. 
Fig. 15. Bud and protonema grown from the leaf. x 53. 
Fic. 16, Leaf base showing origin of protonemata and the formation of a 
new leafy shoot. x 53. 
Fig. 17. The basal half of a leaf, coneniins origin of protonemata from both 
the proximal and the distal ends. mx $4. 
FiG. 18. Tip of a leaf showing protonemata growing from the cut edge. 
FIG. 19. Protonemata and leaf cells from the preceding on a larger scale. 
136, 
FiG. 20. Protonemata originating directly from the defoliated stem. 
x F306, 
FIG. 21. Paraphysis which has grown out into a protonemal filament. 
Bryum argenteum. 
Fic, 22. Leaf with protonema. x 53. 
FiG. 23. A few of the marginal leaf cells showing the origin of proto- 
nema. X 130. 
Fig. 24. Leaf with protonemata. x 53. 
FiG. 25. A few of the basal cells showing the origin of the protonema. 
X 130. 
