INDEX. PAGE Acrospores, 141 Æcidiacei, 189 _Æcidiolum exanthematum_, 22 _Æcidium_, 5 —— (Descriptions), 190 —— _Euphorbiæ_, 11 —— _Galii_, 15 —— _leucospermum_, 11 —— _quadrifidum_, 11 —— _Ranunculacearum_, 12 —— _Saniculæ_, 15 —— _Thesii_, 15 —— _Tragopogonis_, 5 Alternation of Generations, 38 Anemone brand, 60 —— cluster-cups, 10 Anther smut, 85 Antheridia, 129 Appendages or fulcra, 165 APPENDIX, 189 _Aregma bulbosum_, 69 —— (Descriptions), 195 —— _gracilis_, 71 —— _mucronatum_, 34 —— _obtusatum_, 73 _Artotrogus_, 151 Asci, 35 _Ascomyces Rumicis_, 161 _Ascotricha chartarum_, 175 —— (Descriptions), 221 Bean rust, 104 Bedstraw cluster-cups, 15 Beet rust, 104 Berberry cluster-cups, 16 Berberry mildew, 170 Birch rust, 118 —— wedge-rust, 118 Blackberry brand, 68 Bladder brand, 86 Blight, Berberry, 170 —— Burdock, 174 —— Crowfoot, 173 —— Dogwood, 174 —— Gooseberry, 171 —— Guelder-rose, 171 —— Hazel, 168 —— Hop, 169 —— Indian Cotton, 177 —— Maple, 167 —— Mealy Guelder-rose, 172 —— Mugwort, 174 —— Pea, 173 —— Plantain, 174 —— Rose, 166 —— Salsify, 174 —— Willow, 169 _Boletus cyanescens_, 106 _Botrytis devastatrix_, 153 —— _fallax_, 153 —— _infestans_, 153 Bramble brand, 68 Brand, Anemone, 60 —— Bladder, 86 —— Bramble, 68 —— Burnet chain, 73 —— Centaury, 63 —— Complex, 67 —— Dust, 76 —— Earth-nut, 64 —— Goatsbeard, 65 —— Ground-ivy, 59 —— Meadow-sweet, 67 —— Mint, 58 —— Pepper, 86 —— Periwinkle, 103 —— Raspberry, 71 —— Sanicle, 64 —— Strawberry, 72 —— Thistle, 62 Bristle-moulds, 175 Buckthorn cluster-cups, 16 Bunt, 86 Bunt, germination, 87 Burdock blight, 174 Burnet chain-brand, 73 Butter-bur rust, 122 Buttercup blight, 173 —— cluster-cups, 12