460 EXPLANATION OF PLATES. 



PLATE 12. Hypericum pyramidatum (page 85). Fig. 1. ripe capsule; Jig. 2. cross 

 section of the same, bolh of natural size : Jig. 3. seed ; Jig. 4. cross sec- 

 tion of the same : Jig. 5. embryo. 



13. Hypericum Kalmianum (page 86). Fig. 1. one of the parcels of stamens : 



Jig. 2. a petal : Jg. 3. pistil : Jig. 4. cross section of the capsule : all 

 more or less magnified. 



14. Arenaria squarrosa (page 95). Fig. 1. petal : Jg. 2. calyx and capsule : 



Jig. 3. seed : all magnified. 



15. Arenaria Grcenlandica (page 95). Figs. 1. & 2. petals : Jg. 3. calyxand 



capsule : Jg. 4. seed : all magnified. 



16. SiLENE stellata (page 100). Fig. 1. ovary and styles : Jg. 2. petal. 



17. Flcerkia proserpinacoides (page 127). Fig. 1. flower : fig- 2. ovaries and 



style, moderately magnified : Jg. 3. seed, considerably magnified. 



18. Acer dasycarpum (page 136). Fig. A. cluster of fertile flowers, nat. size. 



Fig. I. perfect flower, nat. size ; Jg. 2. the same magnified ; Jg. 3. the 

 same laid open : Jg. 4. ovary and styles : Jg. 5. sterile flower : Jg. 6. 

 abortive ovary : all but fig. 1. magnified. 



19. EuoNYMus Americanus (page 142). Fig. 1. fruit of the natural size. 



20. Ceanothus ovalis (page 145). Fig. 1. flower : Jg. 2. petal : Jg. 3. flower 



with the petals and stamens removed, showing the disk ; Jg. 4. longitu- 

 dinal section of the same : Jg. 5. seed ; Jg. 6. cross section of the same : 

 Jg. 7. embryo : all magnified. 



21. Ervum hirsutum (page 156). Fig. 1. plant of the natural size, in flower and 



fruit : Jg. 2. a flower magnified. 



22. Lathyrus ociiroleucus (page 157). Fig 1. calyx : Jg. 2. vexillum : Jg. 



3. one of the wings : Jg. 4. keel : Jg. 5. stamens : Jig. 6. ovary. 



23. Phaseolus perennis (page 160) in flower and fruit. 



24. Clitoria Mariana (page 163). Fig. 1. legume ; Jg. 2. the same laid open : 



Jg. 3 emiiryo : Jg 4. vexillum : Jg. 5. keel : Jg. 6. wing ; Jg. 7. 

 stamens and style : all nat. size. 



25. Astragalus Canadensis (page 172). Fig. 1. spike of legumes, nat. size : 



Jg. 2. transverse section of a legume, magnified. 



26. Phaca neglecta (page 173). Fig. 1. legumes, natural size : Jig. 2. flower : 



Jg. 3. wings : Jg. 4. keel : Jg 5. stamens, including the pistil ; fig. 6. 

 ])istil, separate ; all sligliily magnified : fig. 7. legume, open at the ventral 

 suiure, lo show the seed ; Jig. 8. transverse section of the same. 



27. Stylosanthes elatior (page 174). Fig. 1. sterile flower : Jg. 2. vexillum: 



Jgs. 3. & 4. wings : Jig. 5. keel : Jig. fi. monadelphous stamens, enclosing 

 the style : Jg. 7. pistil : Jg. 8. fertile flower : Jig. 9. the im o bracts sepa- 

 rate -.Jig. 10. ovary laid open : Jg. 11. legume : Jg. 12. seed : Jg. 13. 

 embryo : all magnified. 



28. Decodon verticillatum (page 229). Fig. 1. flower -yfig. 2. the same with 



the petals removed : Jg. 3. fruit. 



