Woronin, in De Bary’s “Beitr. zur. Morph. und Physiol. der Pilze,” ii. (1866), pp. 1–11.
Tulasne, “Ann. des Sci. Nat.” (5me sér.), October, 1866, p. 211.
Tulasne, “On the Phenomena of Copulation in certain Fungi,” in “Ann. des Sci. Nat.” (1866), p. 211.
De Bary, “Morphologie und Phys. der Pilze,” cap. v., p. 162.
Berkeley, in “Journ. Hort. Soc.” vol ii. p. 107; Tulasne, “Ann. d. Sc. Nat.” (4me sér.), vol. ii. tab. 12.