To assist in this we have given on the following page an analytical arrangement of the families and orders, according to the system recognized and adopted in the present volume. It is, in all essential particulars, the method adopted in our "Handbook," based on that of Berkeley's "Introduction" and "Outlines." [A] Rev. M. J. Berkeley, "Introduction to Cryptogamic Botany" (1857), London, pp. 235 to 372. [B] De Bary, in "Streinz Nomenclator Fungorum," p. 722. [C] Tulasne, L. and C. R., "Observations sur l'Organisation des Trémellinées," "Ann. des Sci. Nat." 1853, xix. p. 193. [D] Berkeley, M. J., "On the Fructification of _Lycoperdon_, _Phallus_, and their Allied Genera," in "Ann. of Nat. Hist." (1840), vol. iv. p. 155; "Ann. des Sci. Nat." (1839), xii. p. 163. Tulasne, L. R. and C., "De la Fructification des _Scléroderma_ comparée à celle des _Lycoperdon_ et des _Bovista_," in "Ann. des Sci. Nat." 2^me sér. xvii. p. 5. [E] Tulasne, L. R. and C., "Fungi Hypogæi," Paris, 1851; "Observations sur le Genre Elaphomyces," in "Ann. des Sci. Nat." 1841, xvi. 5. [F] _Stapeliæ_ in this respect approach most closely to the _Phalloidei_. [G] Berkeley, in "Ann. Nat. Hist." vol. iv. p. 155. [H] Tulasne, L. R. and C., "Recherches sur l'Organisation et le Mode de Fructification des Nidulariées," "Ann. des Sci. Nat." (1844), i. p. 41. [I] De Bary, A., "Des Myxomycètes," in "Ann. des Sci. Nat." 4^me sér. xi. p. 153; "Bot. Zeit." xvi. p. 357. [J] Corda, "Icones Fungorum," vol. iii. fig. 45. [K] Tulasne, "Mémoire sur les Ustilaginées," "Ann. des Sci. Nat." (1847), vii. 12-73. [L] Tulasne, "Mémoire sur les Urédinées," "Ann. des Sci. Nat." (1854), ii. 78. [M] Tulasne, "Sur les Urédinées," "Ann. des Sci. Nat." 1854, ii. pl. 9. [N] Cooke, M. C., "Notes on _Podisoma_," in "Journ. Quek. Micr. Club," No. 17 (1871), p. 255. [O] Tulasne, L. R. and C., "Selecta Fungorum Carpologia," vol. iii. pp. 4-19. [P] De Bary, A., "Recherches sur les Champignons Parasites," in "Ann. des Sci. Nat." 4^me sér. xx. p. 5; "Grevillea," vol. i. p. 150. [Q] A. de Bary, translated in "Grevillea," vol. i. p. 167; Tulasne, "Ann. des Sci. Nat." 5^me sér. (1866), p. 211. [R] Léveillé, J. H., "Organisation, &c., de l'Érysiphé," in "Ann. des Sci. Nat." (1851), xv. p. 109. [S] Tulasne, L. R. and C., "Fungi Hypogæi," Paris; Vittadini, C., "Monographia Tuberacearum," Milan, 1831. [T] "A Currant Twig and Something on it," in "Gardener's Chronicle" for January 28, 1871.