EXPLANATION OF THE PLATES IN VOLUME FIRST. 



PLATE 1. Clematis ochroleuca (page 6) in flower, with a separate head of the ripe 

 carpels. 



2. Anemone multifida (page 9) in flower : the fruit represented separately. 



3. Trollius laxus (page 18). Fig. 1. a petal moderately magnified: Jig. 2. 



stamen, also magnified. 



4. CiMiciFUGA RACEMOSA (page 23). Fig. 1. flower slightly magnified : fig. 2. 



petal ; Jig. 3. stamen ; both magnified : fig. 4. raceme of the ripe fruit, 

 nat. size. 



5. Magnolia glauca (page 27). The ripe fruit exhibits two of the seeds, sus- 



pended on their long thread-like funiculi. 



6. Sarracenia purpurea: var. heterophylla (page 41). Fig. 1. side view of 



the stamens and stigma : fig. 2. ovary (the petals turned down and cut 

 ofi"), with the style, and under surface of the stigma. 



7. Aradis dentata (page 54). The siliques, of the natural size, represented 



separately. Fig. 1. flower enlarged : fig. 2. petal : fig. 3. stamen : fig. 

 4. seed ; fig. 5. transverse section of the same : fig. 6. embryo reraoved : 

 all more or less magnified. 



8. Viola striata (page 73). 



9. HuDsoNiA ToMENTosA (page 80). Fig. 1. leaf : fig. 2. flower laid open ; the 



sepals and two of tlie petals removed : fig. 3. section of the ovary : all 

 magnified. 



10. Drosera filiformis (page 82). Fig. 1. stamen : fig. 2. ovary and styles, 



both magnified : fig. 3. seed, much magnified. 



11. Parnassia Caroliniana (page 83). Fig. 1. stamen: fig. 2. nectary, or 



triple abortive stamen : fig. 3. ovary ; fig. 4. transverse section of the 

 same, showing the placenta; : fig. 5. ovule : all magnified. 

 58» 



