CONTENTS vii 



PAGE 



AMPHIBIOUS KNOTGRASS (Polygonum amphibium, L.) - - - 128 



CRACK WILLOW (Salix fragilis, L.) 130 



FROGBIT (Hydrocharis morsus-rance, L.) - - - - - 133 



YELLOW FLAG (Iris Pseudacorus, L.) - - - - - -135 



SNAKE'S-HEAD FRITILLARY (Fritillaria Meleagris, L.) - - - 138 



REED-MACE (Typha latifolia, L.) - - - - - - -140 



BUR-REED (Sparganium ramosum, Curt.) (-S. erectum, L.) - - 143 



SWEET FLAG (Acorus Calamus, L.) - - 144 



DUCKWEED (Lemna minor, L.)- - - - - - - - 146 



WATER PLANTAIN (Alisma Plantago-aqiiatica, L.) - - - 150 



ARROW-HEAD (Sagittaria sagittifolia, L.) - - - - - - I 5 2 



FLOWERING RUSH (Butomus umbellatus, L.) - - - - 155 



BULRUSH (Scirpus lacustris, L.) - - - - - - -157 



WOOD CLUB RUSH (Scirpus sylvaticus, L.) - - - - - 159 



REED (Phragmites communis, Trin.) ------- 161 



SECTION IX. FLOWERS OF WASTE PLACES, GARDENS, 



REFUSE-HEAPS, VILLAGE GREENS, FARMYARDS, ETC. 165 



GREATER CELANDINE (Chelidonium ma/us, L.) 169 



SHEPHERD'S PURSE (Capsella Bursa-pastoris, Medic.) ... 171 

 MOUSE-EAR CHICKWEED (Cerastium vulgatum, L.) - - - - 174 



COMMON OR MARSH MALLOW (Mal-va sylvestris, L.)- - - - 176 



STORK'S BILL (Erodium cicutarium, L'H^rit.) - - - - - 178 



MELILOT (Melilotus officinalis, Lam.) - - - - - - 181 



GOUTWEED (JEgopodium Podagraria, L.) - - - - - - 183 



STINKING MAYWEED (Anthemis Cotula, L.) - - - - - 185 



TANSY (Tanacetum vulgare, L.) - - - - - - -187 



GROUNDSEL (Senecio vulgaris, L.)- - - - - - -189 



BURDOCK (Arctium minus, Bernh.) - - - - - - -192 



MUSK THISTLE (Carduus nutans, L.) 194 



SPEAR THISTLE (Cnicus lanceolatus, Willd.) 196 



MILK THISTLE (Silybum marianum, Gaertn.) - - - - - 198 



CHICORY (Cichorium Intybus, L.)- - - - - - - 200 



HAWK'S BEARD (Crcpis virens, L.) ( = C. capillaris, Wallr.) - - 202 



