[o] De Bary, "Champignons Parasites," in "Ann. des Sci. Nat." 4^me sér. vol. xx. [p] Berkeley, "On the Potato Murrain," in "Journ. of Hort. Soc. of London," vol. i. (1846), p. 9. [q] De Bary, "On Mildew and Fermentation," p. 25, reprinted from "German Quarterly Magazine," 1872; De Bary, "Morphologie und Physiologie der Pilze," (1866), 201. [r] Cooke, "Handbook of British Fungi," vol. ii. p. 552. [s] De Bary, "On Mildew and Fermentation," in "Quarterly German Magazine," for 1872. [t] We are quite aware that Von Tieghem and Le Monnier, in "Ann. des Sci. Nat." 1873, p. 335, dispute that this belongs to _Mucor mucedo_, and assert that _Chætocladium Jonesii_ is itself a true _Mucor_, with monosporous sporangia. [u] Vittadini, "Monographia Tuberacearum," 1831. [v] Tulasne, "Fungi Hypogæi," 1851. [w] Corda, "Icones Fungorum," vol. vi. [x] Berkeley and Broome, in "Ann. of Nat. Hist." 1st ser. vol. xviii. (1846), p. 73; Cooke, in "Seem. Journ. Bot." [y] Boudier (E.), "Mémoire sur les Ascobolés," in "Ann. des Sci. Nat." 5^me sér. vol. x. (1869). [z] Only in some of the Discomycetes are the asci exserted. [AA] Duby, "Mémoire sur la Tribu des Hysterinées," 1861. [AB] Tulasne, "Selecta Fungorum Carpologia," vol. iii. [AC] Tulasne, "Selecta Fungorum Carpologia," vol. i. Léveillé, "Organisation, &c., sur l'Érysiphé," in "Ann. des Sci. Nat." (1851), vol. xv. p. 109. [AD] Other works besides those already cited, which may be consulted with advantage on structure, are-- Tulasne, L. R. and C., various articles in "Annales des Sciences Naturelles," série iii. and iv. Hoffmann, "Icones Analyticæ Fungorum." De Bary, "Der Ascomyceten." Leipzic, 1863. Berkeley, M. J., "Introduction to Cryptogamic Botany." Seynes, J. de, "Recherches, &c., des Fistulines." Paris, 1874. Winter, G., "Die Deutschen Sordarien." 1874. Corda, J., "Prachtflora." Prague, 1840. De Bary, "Über der Brandpilze." 1853. Brefeld, O., "Botan. Untersuch. ü Schimmelpilze." Fresenius, G., "Beiträge zur Mykologie." 1850. Von Tieghem and Le Monnier, in "Annales des Sciences Naturelles" (1873), p. 335. Cornu, M., "Sur les Saprolegniées," in "Ann. des Sci. Nat." 5^me sér. xv. p. 5. Janczenski, "Sur l'Ascobolus furfuraceus," in "Ann. des Sci. Nat." 5^me sér. xv. p. 200. De Bary and Woronin, "Beiträge zur Morphologie und Physiologie der Pilze." 1870. Bonorden, H. F., "Abhandlungen aus dem Gebiete der Mykologie." 1864. Coemans, E., "Spicilége Mycologique." 1862, etc. III CLASSIFICATION