IPOMOEA BATATUS 513 



10. McCoRMicK, F. A., "Notes on the anatomy of the young tuber of Ipomoea 



batatas Lam." Bot. Gaz- 61: 388-398, 1916. 



11. Scott, D. H., "On some points in the anatomy of Ipomoea versicolor Mcissn." 



Ann. Bot. j: 173-180, 1891. 

 II. Stout, A. B., "The flowers and seed of sweet potatoes." Jour. N. Y. Bot. 

 Card. 2;: 153-168, 1914. 



13. Thompson, J. B., "Production of sweet-potato seedlings at the Virgin Islands 



Exp. Sta." Virgin Island Exp. Sta. Bull. ;, 1915. 



14. TuYiHusA, v., "Are the bulbs of Batatas edulis choisy roots or stems?" Bot. 



Mag. (Tokyo') 28: 475, 1914. 



