Wild Forms and Species of Tuber-bearing- Solanums. 



PLATE 5. 

 Solanum Commersonii, Dun. (White-flowered form.) 



A. Flower from above, showing anthers, 



x 2. 



B. Flower from below, showing calyx, 



x 2. 



C. Flower, side view, part of corolla re- 



moved, x 2. 



D. Flower section, x 2. 



E. F, 0. Tubers, J. 



H. Stolon cut at + + showing distance 

 from plant at which tubers are pro- 

 duced, \. 



J. Section of stolon at K. }. 



K. Point of section shown at J. 



L. External cells of tuber, x 60. 



PLATE 6. 

 " Solanum Commersonii ' Violet,' " Labergerie. 



A. Flower from above, showing anthers, 



x 2. 



B. Flower from below, showing calyx, x 2. 



C. Flower, side view, part of corolla re- 



moved, x 2. 



D. Section of flower, x 2. 



E, F, G. Tubers, . 



H. External cells of tuber, x 60. 



PLATE 7. 

 Paulsen's " Blue Giant " Potato. 



A. Flower from above, showing anthers, 



x 2. 



B. Flower from below, showing calyx, x 2. 



C. Flower, side view, part of corolla re- 



moved, x 2. 



D. Section of flower, x 2. 



E, F, G. Tubers, J. 



H. External cells of tuber : x 60. 



PLATE 8. 

 Solanum tuberosum, Linn., var. 



A. Inflorescence and upper leaves, 



B. Flower showing anthers, x 2. 



C. Flower showing calyx, x 2. 



D. Flower, side view, x 2. 



E. Flower section, x 2. 



F. Pollen, x 300. 



G. Cyme with berries, . 



H. Berry, vertical and horizontal sections, 



f- 

 J. Tubers, f 



PLATE 9. 

 Solanum etuberosum, Lindl. 



A. Inflorescence and upper leaves with 



large lower leaf, . 



B. Flower showing anthers, x 2. 



C. Flower showing calyx, x 2. 



D. Flower, side view, x 2. 



E. Flower section, x 2. 



F. Bud, x 2. 



G. Bud, x 2. 

 H. Berry, }. 



H 1 .) 



JT, j- White-spotted berries, 



J. Berry section. ^. 

 K. Pollen, x 300. 

 LL. Tubers, $. 



PLATE 10. 

 Solanum etuberosum, Lindl. (White- flowered Seedling.) 



A. Inflorescence and upper leaves, large 



lower leaf behind, . 



B. Flower showing anthers, x 2. 



C. Flower showing calyx, x 2. 



D. Flower, side view, x 2. 



E. Flower section, x 2. 



F. Cyme, with flowers removed, J. 



G. Pollen, x 300. 



