[U] Berkeley, M. J., "Introduction to Cryptogamic Botany," London, 1857; Cooke, M. C., "Handbook of British Fungi," London, 1871 ; Corda, A. C. J., "Anleitung zum Studium der Mycologie," Prag, 1842; Kickx, J., "Flore Cryptogamique des Flanders," Gand, 1867; Fries, E., "Systema Mycologicum," Lund, 1830; Fries, E., "Summa Vegetabilium Scandinaviæ," 1846; Secretan, L., "Mycographie Suisse," Geneva, 1833; Berkeley, M. J., "Outlines of British Fungology," London, 1860. TABULAR ARRANGEMENT OF FAMILIES AND ORDERS. DIVISION I. SPORIFERA. _Spores naked._ I. Hymenium free, mostly naked, or soon exposed HYMENOMYCETES. Hymenium normally inferior-- Fruit-bearing surface lamellose _Agaricini._ Fruit-bearing surface porous or tubular _Polyporei._ Fruit-bearing surface clothed with prickles _Hydnei._ Fruit-bearing surface even or rugose _Auricularini._ Hymenium superior or encircling-- Clavate, or branched, rarely lobed _Clavariei._ Lobed, convolute, or disc-like, gelatinous _Tremellini._ II. Hymenium enclosed in a peridium, ruptured when mature GASTEROMYCETES. Hymenomycetous-- Subterranean, naked or enclosed _Hypogæi._ Terrestrial, hymenium deliquescent _Phalloidei._ Peridium enclosing sporangia, containing spores _Nidulariacei._ Coniospermous-- Stipitate, hymenium convolute, drying into a dusty mass, enclosed in a volva _Podaxinei._ Cellular at first, hymenium drying up into a dusty mass of threads and spores _Trichogastres._ Gelatinous at first, peridium containing at length a dusty mass of threads and spores _Myxogastres._ III. Spores naked, mostly terminal, on inconspicuous threads, free or enclosed in a perithecium CONIOMYCETES. Growing on dead or dying plants-- Subcutaneous-- Perithecium more or less distinct _Sphæronemei._ Perithecium obsolete or wanting _Melanconiei._ Superficial-- Fructifying surface naked. Spores compound or tomiparous _Torulacei._ Parasitic on living plants-- Peridium distinctly cellular _Æcidiacei._ Peridium none-- Spores sub-globose, simple or deciduous _Cæomacei._ Spores mostly oblong, usually septate _Pucciniæi._