M. Tulasne has devoted a chapter to the spermogonia of the Uredines in his memoir, to which we have already alluded.
Œersted, in “Verhandl der König. Dän. Gesell. Der Wissensch,” 1st January, 1865; De Bary, “Handbuch der Physiol. Botanik” (1866), p. 172; “Annales des Sci. Nat.” (5me sér.), vol. v. (1866), p. 366.
Van Tieghem and Le Monnier, in “Annales des Sci. Nat.” (1873), vol. xvii. p. 261.
Brefeld, “Bot. Unt. uber Schimmelpilze,” p. 31.
De Bary, “Morphologie und Physiologie der Pilze,” cap. 5, p. 160; “Ann. des Sci. Nat.” (1866), p. 343.