I 



Plant and Animal Hosts. 



22 



Matricaria inodora, 192. 

 Matthiola, 119. 

 Medicago, 122. 

 Melilotus, 122. 



officinalis, 118. 

 Menianthes trifoliata, 163. 

 Mercurialis perennis, 153. 

 Meum athamanticum, 114, 162. 

 Milium, 181. 

 Mulgedinm, 115. 

 Myosotis arvensis, 117, 191. 



csespitosa, 191. 



hispida, 117. 



palustris, 191. 



sylvatica, 191. 



Nasturtinm, 119. 

 Neslia, 119. 

 Nitella, 155, 159. 



CBnothera biennis, 153. 

 Ononis, 122. 

 Orobus, 122. 



tuberosa, 118. 

 Oxyriareniformis, 177. 



Papaver agreniones, 120. 



dvibitim, 120, 191. 



rheas, 120, 191. 



somniferiim, 120, 

 Paris quadrifolia, 187. 

 Pastinaca sativa. 111. 

 Petroselinum sativum, 114. 

 Peucedanum palustre. 111. 

 Phalaris arundinacea, 172. 

 Phoenix dactylifera, 206. 

 Phragmites communis, 172, 173, 

 Pimpinella magna, 113. 



saxifraga, 113. 

 Pinguicula alpina, 179. 

 Pisum sativum, 118. 

 Poa, 181. 



pratensis, 186. 

 Polygonacese, 124. 

 Polygonum aviculare, 179. 



bistorta, 175, 182. 



convolvulus, 124, 179. 



hydropiper, 179, 182. 



lapathifolium, 179. 



persicaria, 179, 182. 



vivipara, 182. 

 Potato, 203. 



Q 



Primula farinosa, 190. 



vulgaris 190. 

 Prunella vulgaris, 153. 

 Psamma arenaria, 172. 

 Pyrethrum arvense, 122. 

 Pyrus, 205. 



Ranunculus acris, 120, 189, 194. 



auricomus, 120. 



bulbosus, 120, 189, 194. 



ficaria, 120. 



flammula, 120. 



repens, 189, 192, 194. 

 Raphanus, 119. 

 Rhyncospora alba, 174. 

 Roestelia, 204, 205. 

 Rose, 128. 

 Rumex acetosa, 180. 



acetosella, 180. 



obtusifolius, 175. 



Sagittaria sagittifolia, 198. 

 Salvia pratensis, 123. 

 Sanguisorba officinalis, 153. 

 Saponaria officinalis, 179, 202. 

 Scabiosa arvensis, 122, 178. 



columbaria, 178. 



succisa, 178. 

 Scilla bifolia, 187. 

 Scirpus parvulus, 174. 

 Scrophularia altaica, 127. 



aquatica, 127. 



nodosa, 127. 

 Secale cereale, 186. 

 Selinum, 114. 

 Senecio, 115. 

 Sherardia arvensis, 117. 

 Silene inflata, 179, 202. 



maritima, 179. 



nutans, 179. 



otites, 180. 

 Sinapis, 119. 

 Sisymbrium, 119. 

 Slum latifolium, 114. 

 Smilacina, 164. 

 Solanum tuberosum, 111. 

 Sonchus, 115. 

 Spergularia rubra, 40. 

 Spirogyra, 139, 155. 



nitida, 155, 156. 

 Spinacia oleracea, 124- 

 Stachys palustris, 123. 

 2 



