13 



Genera. 

 CEnothera pumila, 

 Rhamnus catharticus, 

 Ranunculus sceleratus, 

 Barbarea vulgaris. 



From June 1st to 10th. 



Common Names. Natural Orders. 



Evening primrose. Onagraceae. 



Common buckthorn. Rhamnaceae. 



Cursed crowfoot. Ranunculacese. 



Winter cress. Cruciferse. 



From June 10th to 20th. 



Prunus serotina, 

 Potentilla argentea, 



Norvegica, 

 Viburnum lentago, 



nudum, 

 Mediola Virginica, 

 Smilax herbacea, 

 Cornus alternifolia, 

 Festuca elatior, 



ovma, 



var. duriuscula. 



Dantbonia spicata, 

 Holcus lanatus, 

 Stipa avenacea, 

 Triticum repens, 

 Glyceria aquatica, 

 nervata, 

 Canadensis, 

 elongata, 

 fluitans, 

 acutiflora, 

 pallida, 

 Dactylis glomerata, 

 Scirpus pungens, 

 * lacustris, 

 maritimus, 

 sylvaticus. 

 Juncus effusus, 



scirpoides, 



articulatus, 



bulbosus, 



tenuis, 



bufonius, 



Greenii, 



Wild black cherry. 

 Silvery cinque-foil. 

 Tall cinque-foil. 

 Sweet viburnum. 

 Withe-rod. 

 Indian cucumber-root. 

 Carrion flower. 

 Panicled cornel. 

 Fescue-grass. 



Wild oat-grass. 



Velvet-grass. 



Black oat-grass. 



Couch-grass. 



Reed meadow-grass. 



Glyceria. 



Rattlesnake-grass. 



Glyceria. 



Orchard grass. 

 Club rush. 

 Bulrush. 

 Sea club rush. 



Common soft rush. 

 Juncus. 



Black grass. 

 Juncus. 



Rosaceae. 



Caprifoliaceae. 



Smilaceae. 

 it 



Cornacese. 

 Gramineae. 



Cyperaceae. 



Juncaceae. 



♦Rather later. 



