SOLANUM TUBEROSUM 549 



14. GuiGNARD, L., "La double fecondation chez les Solanees." Jour, de Bot. 16: 



145-167, 1901. 



15. MiJLLER, K. O., "Ein Beitrag zue Bliitenbiologie der Kartoffel." Angew. 



Bot. /.• 146-153, 192.3. 



16. Nanetti, a., "Sulla probabili cause della partenocarpia del Solanum murica- 



tum. Ait." Nuova giorti. hot. Ital. N. S. ig: 91-111, 1911. 



17. Priestley, J. H., and Swingle, C. F., "Vegetative propagation from the 



standpoint of plant anatomy." U . S. Dept. Agr. Tech. Bull, i^i, 19x9. 



18. Reed, T., "On the anatomy of some tubers." Ann. Bot. 24: 537-548, 1910. 



19. Rees-Leonard, Olive L., "Macrosporogenesis and development of the macro- 



gametophyte of Solanum tuberosum." Bot. GaZ- 96: 734-750, 1935. 

 lo. Rosa, J. T., "Relation of tuber maturity and of storage factors to potato 



dormancy." Hilgardia ^: 99-1x4, 192.8. 

 XI. ScHNARF, K., Vergleichende Embryologie der Angwspermen, Gebriider Borntraeger, 



Berlin, 193 1. 

 iz. SouEGEs, R., "Developpement et structure du tegument seminal chez les 



Solanacees." Ann. Sci. Nat., Bot. Ser. IX, 6: 1-1x4, 1907- 

 X3. , "Recherches sur I'embryogenie des Solanacees." Bull. Sac. Bot. 



France 6(): 555-585, 19XX. 

 X4. Thiel, A. F., "Vascularanatomy of the transition region of certain Solanaceous 



plants." Bot. Gaz- 94: 598-604, 1933. 

 X5. ToGNiNi, F., "Suir embriogenia di alcune Solanacee da appunti lasciati." 



Attj. 1st. Bot. Pavia, Ser. II, 6: 109-ixx, 1900. 

 x6. DE Vries, H., "Beitrage zur speciellen Physiologic landwirtschaftlicher 



Kulturpflanzen. V. Wachstumsgeschichteder KartofFelpflanze." Landtv. 



Jahrb. j: 591-68X, 1878. 

 X7. Warner, E. E., "The floral development and vascular anatomy of the flower 



of Lycopersicon esculentum var. cerasiforme." Unpubl. M.S. Thesis, 



Univ. of Chicago, 1933. 

 x8. Weaver, J. E., Root Development of Field Crops, McGraw-Hill Book Co., 19x6. 

 X9. Young, W. J., "Some phases of breeding work and seed production of Irish 



potatoes." So. Car. Agr. Exp. Sta. Bull. 210, 191X. 

 30. , "Potato ovules with two embryo sacs." Am. Jour. Bot. g: X13-X14, 



I9XX. 

 31. , "The formation and degeneration of germ cells in the potato." Am. 



Jour. Bot. 10: 3x5-335, 19x3. 



