134 EXPLANATION OP PLATES. 



PLATE 2. 



TRUNKS. 



Fig. 1. A STEM (caulis.) p. 10. 



2. Four-ranked stem. p. 11. 



3. Dichotomous or forked stem. p. 11. 



4. Creeping stem. 



5. Twining stem. Ex. Convolvolus. p. 12. 



6. CULM (cuJmtw.) Ex. Grass, p. 15. 



7. SCAPE. Ex. Dandelion. 



a. The scape. 



It. A naked receptacle. 



c. The pappus. 



d. A flower. 



3. FROND. Ex. Polypodium vulgaris. p. 19. 



8 a. STIPE, p. 20. 



9 a. A stipe also. Ex. Fungus. 



b. The Volve, c. the Head of the fungus, 



