Part 1: Dec 1910, p. [1]-71, atlas: cover, [1, err.], pl. 1-63. Author: F. C. Hoehne; Part 2: Aug 1912, p. [1]-15. – Author: Hermann August Theodor Harms (1870-1942), Leguminosae; Part 3: Aug 1912, p. [1]-15, pl. 64-65. – Author: Célestin Alfred Cogniaux (1841-1916), Melast., Cucurb., Orchid.; Part 4: Aug 1912, p. [1]-33, pl. 66-79. – Author: F. C. Hoehne; Part 5: Jan 1915, p. [1]-87, pl. 80-112. – Author: F. C. Hoehne; Part 6: Sep 1915, p. [1]-96, pl. 113, 113a-131. – Author: F. C. Hoehne; Part 7: 1916, p. [1]-34, pl. 1-5. – Author: Alberto José de Sampaio (1881-x), Pteridophytas; Part 8: 1919 (post Jan), p. [i], [1]-99, [1, abbrev.]. pl. 132-159. – Author: F. C. Hoehne; Part 9: 1916 (post Jan), p. [1]-43 pl. 1690-177. – Author: F. C. Hoehne; Part 10: Aug 1917, p. [1]-15, pl. 1-13. – Author: A. J. de Sampaio, Lauraceae; Part 11: 3 Mar 1922, p. [1]-95, pl. 1-6, [1, err.]. – Author: Joao Geraldo Kuhlmann (1882-1958), Gramineas(1); Part 12: Jul-Aug 1922, p. [1]-28, pl. 178-192. – Author: F. C. Hoehne; Part 13: Apr 1923, p. [1-4], 1 pl. – Author: J. G. Kuhlmann